The force that drives motion is kinetic energy. It is the energy a thing possesses as a result of movement. It is the energy that a moving item possesses as a result of its direction and speed.
What is kinetic energy?
Kinetic energy is the force that propels motion. It's the energy that an object has because it's moving. Kinetic energy can be exchanged between objects or transformed into other types of energy, such as heat or potential energy. The kinetic energy is affected by the object's mass and speed. The kinetic energy of an object increases with speed.
From the mobility of atomic particles to the movement of things in space, kinetic energy is a crucial component in many branches of physics.
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width of the wooden block
The width of the wooden block measured by the vernier caliper is 0.74 cm.
What is the width of the wooden block?
The width of the wooden block measured by the vernier caliper is calculated as follows;
Width of the wooden block = main scale reading + vernier scale reading
The main scale reading = 0.7 cm
The vernier scale reading ( point of alignment ) = ( 0.4 cm / 10 ) = 0.04 cm
The width of the wooden block measured by the vernier caliper is calculated as follows;
Width of the wooden block = 0.7 cm + 0.04 cm
Width of the wooden block = 0.74 cm
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what is the magnitude of the acceleration of a skydiver who is currently falling at one-half his eventual terminal speed?
0.68 m/s² is the magnitude of the acceleration of a skydiver who is currently falling at one-half his eventual terminal speed.
The terminal speed of a skydiver is the maximum velocity that the skydiver reaches in freefall, where the net force acting on the skydiver is equal to zero. The terminal speed is determined by the balance between the gravitational force acting on the skydiver and the air resistance force acting on the skydiver. The acceleration of a skydiver who is currently falling at one-half his eventual terminal speed can be calculated using the equation for the net force acting on the skydiver:
[tex]F net = ma[/tex],
here,
m is mass of the skydiver,
a is acceleration.
Since, the net force is equal to zero at terminal speed, we can calculate the air resistance force at one-half the terminal speed and equate it to the gravitational force to find the acceleration. The air resistance force is proportional to the square of the velocity, so at one-half the terminal speed, the air resistance force is proportional to one-fourth of the terminal speed squared.
Let's call the terminal speed Vt and the skydiver's velocity at one-half the terminal speed V/2:-
[tex]F gravity = m * g[/tex],
here, g is acceleration due gravity (9.8 m/s^2).
[tex]F air = -k * V^2[/tex],
here, k constant that depends on the skydiver's body shape, size, and surface area.
At terminal speed, net force is zero:-
[tex]m * g = -k * Vt^2[/tex]
At one-half the terminal speed, the air resistance force is proportional to one-fourth of the terminal speed squared:-
[tex]F air = -(k/4) * Vt^2 = -(k/4) * (V/2)^2[/tex]
The gravitational force is unchanged:-
[tex]F net = m * g + Fair[/tex]
Reversing in the values:-
[tex]m * g = m * g + (-k/4) * (V/2)^2[/tex]
Rearranging the eq.:
[tex](k/4) * (V/2)^2 = m * g[/tex]
Dividing both sides by m:-
[tex](k/4) * (V/2)^2 / m = g[/tex]
[tex](V/2) / \sqrt{((k/4) / m)} = \sqrt{(g)}[/tex]
Finally, dividing both sides by (V/2):-
[tex]a = \sqrt{(g)} / \sqrt{ ((k/4) / m)}[/tex]
Note that the constant k is difficult to calculate exactly, as it depends on many factors such as the skydiver's body shape, size, and surface area, as well as the air density and altitude. However, we can use an estimated value of k to find an approximate value for the acceleration. For example, a common value used for k is 0.75, so if we use this value, we get:
[tex]a = \sqrt{(9.8 m/s^2)} / \sqrt{((0.75/4) / m)} = 0.677 = 0.68 m/s^2[/tex].
Hence, the magnitude of the acceleration of a skydiver who is currently falling at one-half his 0.68 m/s².
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Hi could someone help me answer these questions from my worksheet, thanks!
2. The field representation of a positive charge would not be a good representation of the gravitational field around one mass because the electric force between charged particles is an electromagnetic force that behaves differently from the gravitational force between masses.
3. The field around two positive charges would not be a good representation of the gravitational field around two masses because the direction of the electric force between two charges is dependent on their relative positions and charges, whereas the direction of the gravitational force between two masses is always attractive and points toward the center of mass.
4, A good analogy for the process of work being done and electric potential energy being stored when positive and negative charges are moved farther apart would be the process of lifting a heavy object because work must be done to lift a heavy object and store gravitational potential energy, work must be done to separate positive and negative charges and store electric potential energy.
5. The gravitational force is the dominant force we notice in our everyday interactions and at planetary or larger scales because it depends only on the mass of the objects, which is typically much larger than their charge.
What is the difference between gravitational force and electric force?The gravitational force between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between them, while the electric force between two charges is proportional to the product of their charges and inversely proportional to the square of the distance between them.
Gravitational force is a long-range force that acts between all masses, while the electric force is a short-range force that acts only between charged particles.
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if a researcher measures two individuals on an ordinal scale, it is impossible to determine which individual has the larger score. (True or False)
The statement "If a researcher measures two individuals on an ordinal scale, it is possible to determine which individual has the larger score" is false.
An ordinal scale is a type of measurement scale that allows for the ranking of individuals or objects based on a specific characteristic or trait. For example, if a researcher is measuring the level of pain experienced by two individuals, they may use an ordinal scale with categories such as "no pain," "mild pain," "moderate pain," and "severe pain." The individual who falls into the "severe pain" category would have a larger score than the individual in the "mild pain" category. Therefore, it is possible to determine which individual has the larger score when using an ordinal scale.
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What is the acceleration due to gravity on a 9.8 x 1026 kg planet that has a radius of 2.8 x 107 m?
The acceleration due to gravity on a 9.8 x 1026 kg planet that has a radius of 2.8 x 107 m g = 9.8 m/s2.
calculation using the equation:
Gravity (g) = (G x Mass of Planet)/(Radius of Planet)^2
Where G is the gravitational constant (6.67408 x 10-11m3kg-1s-2).
Therefore, gravity (g) = (6.67408 x 10-11m3kg-1s-2 x 9.8 x 1026 kg)/(2.8 x 107 m)^2
g = 9.8 m/s2
What is acceleration due to gravity?
Acceleration due to gravity is the acceleration of an object in a vacuum due to the force of gravity. It is commonly denoted by g and has a value of 9.8 m/s² or 32.2 ft/s² at sea level on Earth.
Therefore, The acceleration due to gravity on a 9.8 x 1026 kg planet that has a radius of 2.8 x 107 m g = 9.8 m/s2.
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if speed of particle triples by what factor does it kinetic energy increase
If speed of particle triples, the kinetic energy will be times six (6).
What is the relationship between kinetic energy and speed?Kinetic energy is the energy possessed by an object because of its motion, equal (nonrelativistically) to one half the mass of the body times the square of its speed.
The kinetic energy of a moving object is directly proportional to its mass and directly proportional to the square of its velocity.
This means that an object with twice the mass and equal speed will have twice the kinetic energy while an object with equal mass and twice the speed will have quadruple the kinetic energy.
Therefore, an object with triple speed will have times six kinetic energy.
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what two types of forces act on a fluid element? question 5 options: shearing and surface forces body and surface forces gravitational and body forces
The two types of forces that act on a fluid element is body forces and surface forces.
A body force is a force that acts throughout the volume of a body.( 1) Forces due to graveness, electric fields and glamorous fields are exemplifications of body forces. Body forces discrepancy with contact forces or face forces which are wielded to the face of an object.
Normal forces and shear forces between objects are superficial forces as they're wielded to the face of an object. All cohesive face magnet and contact forces between objects are also considered as face forces.
Face force denoted fs is the force that acts across an internal or external face element in a material body. face force can be perished into two vertical factors normal forces and shear forces. A normal force acts typically over an area and a shear force acts parenthetically over an area.
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what is the conversion factor between cm2 and m2? 0.01 m2/cm2 10 m2/cm2 10000 m2/cm2 100 m2/cm2 0.0001 m2/cm2
The conversion factor between square centimeters ([tex]cm^2[/tex]) and square meters ([tex]m^2[/tex]) is [tex]0.0001 m^2/cm^2.[/tex]
to convert a given area from square centimeters to square meters, you need to multiply it by 0.0001, and to convert it from square meters to square centimeters, you need to multiply it by 10,000.
This conversion factor is derived from the fact that there are 100 centimeters in a meter, and the conversion from one unit to another involves squaring the length measurement. This means that the conversion factor between the area in square centimeters and square meters is [tex](1 cm / 100 cm)^2[/tex] = [tex]0.0001 m^2/cm^2[/tex].
It's important to be able to convert between different units of area, as different applications may require different units. For example, when measuring the area of a small object, square centimeters may be a more appropriate unit, while for larger areas, square meters may be more suitable.
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what is the maximum torque on a 150-turn square loop of wire 18.0 cm on a side that carries a 36.4 a current in a 1.60 t field?
The maximum torque on a 150-turn square loop of wire 18.0 cm on a side that carries a 36.4 a current in a 1.60 t field is 283.04 N m.
1) torque on the loop will be :
T = N*I*L^2*B*sin(90)
T = 150*36.4*0.18*0.18*1.6
T = 283.04 N m
2) T = 283.04*sin(10.9)
T = 53.52 Nm
3) I = T/N*area*B
I = 9/36.4*3.14*0.364*0.364*0.8
I = 0.082 A
Current = 0.082 A
Necklace is the rotational fellow of direct force.( 1) It's also appertained to as the moment of force( also shortened to moment). It represents the capability of a force to produce change in the rotational stir of the body.
The conception began with the studies by Archimedes of the operation of regulators, which is reflected in his notorious quotation" Give me a switch and a place to stand and I'll move the Earth". Just as a direct force is a drive or a pull, a necklace can be allowed of as a twist to an object around a specific axis.
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the segment is shrunk to one-third of its original length. what is the ratio , where and are the initial and final linear charge densities? a proton is very far from the wire. what is the ratio of the electric force on the proton after the segment is shrunk to the force before the segment was shrunk? suppose the original segment of wire is stretched to 10 times its original length. how much charge must be added to the wire to keep the linear charge density unchanged?
Ratio of the final to the initial linear charge density is cubed, and for electric force before and after shrinking ratio is equal to that of charge density.
When a segment of wire is shrunk to one-third of its original length, the ratio of the final to the initial linear charge density ( ) is cubed. In other words.
The electric force on a proton located far from the wire is proportional to the linear charge density of the wire. So, if the linear charge density decreases (as it does when the wire is shrunk), the electric force on the proton also decreases. The ratio of the electric force on the proton after the segment is shrunk to the force before the segment was shrunk is equal to the ratio of the linear charge densities: .
If the original segment of wire is stretched to 10 times its original length, then the linear charge density will decrease to one-tenth of its original value. To keep the linear charge density unchanged, an amount of charge equal to ten times the original charge must be added to the wire. This is because the linear charge density is proportional to the total charge on the wire and inversely proportional to the length of the wire.
In conclusion, when a segment of wire is shrunk or stretched, the linear charge density changes, which in turn affects the electric force on a proton located far from the wire. To keep the linear charge density unchanged, the total charge on the wire must be adjusted accordingly.
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Sam ran a 2000-meter race. He started at 9:00 AM and finished at 9:05 AM.
He started out fast but slowed down toward the end. Calculate Sam’s
average speed during the race.
Answer: Approximately 6.67 meters per second.
Explanation:
Speed is a quantity measured in meters per second, so because the elapsed time is 5 minutes, let's turn it into seconds. 5 minutes multiplied by 60 seconds is 300 seconds.
2000 meters divided by 300 seconds is about 6.67 meters per second, which is the speed.
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Which of these statements is true of the impacts of climate change?(1 point)
Responses
They have become less severe over time.
They will impact human food supplies.
They affect plants and animals more than people.
They are mostly associated with oceans.
They will impact human food supplies.
Climate change is affecting food production by causing changes in temperature, precipitation patterns, and extreme weather events, which can reduce crop yields and disrupt food systems. This, in turn, can impact food security and increase food prices, particularly for vulnerable populations. Climate change is also affecting the distribution of fish and other aquatic species, which are critical sources of protein for many communities.
In fact the statement that the climate change affects plants and animals more than people can be considered as true. Because, they cannot have sufficient protection as humans have.
What are climate changes ?The climate is the change in whether for a longer period of time over an area. The climate changes in each season and apart from that, some worse conditions in earth make some dramatic climate changes which badly affects all living and non- living things in the world.
The global warming is the notable climate change occurring in earth due to the uncontrolled emission of gases like carbon dioxide. The rise in temperature melts the ices and rises the sea level which leads to the extinction of some polar animals.
Plants and animals are more pronged to these changes because they don' t have sufficient protection against the threatening climatic changes. Hence, option C is correct.
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Gwen is baby-sitting for the Parker family. She takes 3-year old Allison to the
neighborhood park and places her in the seat of the children's swing. Gwen pulls the
1.8-m long chain back to make a 26° angle with the vertical and lets 14-kg Allison
(swing mass included) go. Assuming negligible friction and air resistance, determine
Allison's speed at the lowest point in the trajectory.
Allison's speed at the lowest point in the trajectory is 6.41 m/s.
What is trajectory?A mass-moving object's route through space as a function of time is known as its trajectory or flight path.
The potential energy at the highest point is given by:
PE = mgh = (14 kg)(9.8 [tex]m/s^2[/tex])(1.8 m)(cos 26°) = 237.5 J
Where h is the height above the lowest point.
At the lowest point, all of the potential energy is converted to kinetic energy, so:
KE = PE = 237.5 J
The kinetic energy is given by:
KE = (1/2)[tex]mv^2[/tex]
where v is the speed at the lowest point. Solving for v, we get:
v = sqrt(2KE/m) = sqrt(2(237.5 J)/(14 kg)) = 6.41 m/s
Thus, 6.41 m/s. Allison's speed at the lowest point in the trajectory.
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how much extra water does a 140-lb concrete canoe displace compared to an ultra lightweight 41-lb kevlar canoe
The volume of water displaced canoe compared to an ultra-lightweight Kevlar canoe is 1.586ft^3 extra water.
Which would give us the total volume displace by each canoe, however, the problem asks us for the difference between volumes displaced, and thus the difference is:
ΔV = (Mc_c + Mc_K /ρ)_c - (Mc_c + Mc_K /ρ)_K
Since both the mass of the load and the density of the fluid is the same for both cases, the previous equation becomes:
ΔV = Mc_c - Mc_K /ρ
ΔV = 140lb - 41lb / 62.4 lb/ft^3
ΔV = 1.586ft^3
Kevlar canoe is a type of canoe made of a material called Kevlar. Kevlar is a strong synthetic fiber that is known for its resistance to abrasion, heat, and cuts. It is commonly used in the manufacturing of body armor, bulletproof vests, and other protective gear. In the case of a Kevlar canoe, the material is used to construct the hull of the canoe, making it lightweight, durable, and easy to maneuver.
Kevlar canoes are popular among outdoor enthusiasts, particularly those who enjoy canoeing or kayaking in whitewater rivers, lakes, or oceans. They are also popular among people who like to take long trips or expeditions as the Kevlar material ensures the canoe can withstand harsh conditions and heavy use.
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Complete Question: -
How much extra water does a 140-lb concrete canoe displace compared to an ultra -lightweight 41-lb Kevlar canoe of the same size carrying the same load?
what is the energy of a radio photon from the same station?
A radio photon is a quantum of electromagnetic radiation in the radio frequency range of the electromagnetic spectrum. Electromagnetic radiation is a type of energy that travels through space as waves, and is characterized by its frequency, wavelength, and energy.
What is the energy of a radio photon from the same station?The energy of a radio photon from a particular radio station depends on the frequency of the radio wave, which is typically measured in Hertz (Hz). The energy of a photon is given by Planck's equation:
E = h*f
where E is the energy of the photon, h is Planck's constant (6.626 x 10^-34 joule-seconds), and f is the frequency of the wave.
For a typical radio station, the frequency of the radio wave is in the range of several hundred kilohertz to several megahertz. Let's take the example of a radio station that broadcasts at a frequency of 1000 kilohertz (1 megahertz).
Using the equation above, we can calculate the energy of a single photon of this radio wave as follows:
E = 6.626 x 10^-34 J*s * 1 x 10^6 Hz
E = 6.626 x 10^-28 joules
So, the energy of a radio photon from a 1-megahertz radio station is about 6.626 x 10^-28 joules.
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they also have different ____________ , or the amount of energy needed to increase the temperature of the object.
Different substances also have different specific heat capacities, which is the amount of energy needed to increase the temperature of an object by a certain amount.
Specific heat is defined as the amount of heat energy required to raise the temperature of one unit of mass of a substance by one degree Celsius (or one Kelvin). It is a physical property that depends on the chemical composition and molecular structure of the substance. Substances with a high specific heat capacity require more heat energy to increase their temperature than substances with a low specific heat capacity. For example, water has a very high specific heat capacity, which means that it takes a large amount of heat energy to raise its temperature by even a small amount. This is why water is often used as a coolant in industrial processes, as it can absorb a large amount of heat without increasing in temperature significantly. On the other hand, metals have low specific heat capacities, which means that they require relatively less heat energy to increase their temperature. This is why metals are often used in cooking utensils, as they can be quickly heated up and used to cook food. Specific heat is an important property in various fields of science and engineering, as it affects the way heat is transferred between different substances, such as in thermal insulation, heating and cooling systems, and chemical reactions.
In summary, specific heat capacity is a property of a substance that determines the amount of heat energy needed to increase the temperature of the substance by a certain amount. Different substances have different specific heat capacities due to differences in their chemical composition and molecular structure.
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What force is your bottom pushing against the chair
The force that your bottom is pushing against the chair is called the "action force."
What does action force mean?The action force is equal and opposite to the "reaction force" that the chair is pushing back against your bottom. This is known as Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction.
So, when you are sitting in a chair, your bottom is pushing against the chair with a certain amount of force, and the chair is pushing back against your bottom with the same amount of force. This is why you are able to sit in the chair without falling through it.
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now, each mass is pulled down by an additional 1 cm and released, so that it oscillates up and down. which of the oscillating systems has the highest frequency?
The frequency of System 1 is highest, followed by System 2, and finally System 3.
The equation: gives the frequency of an oscillating system.
f = (1 / 2π) * √(k / m)
When the mass is m, the spring constant is k, and the frequency is f.
Each mass is dragged down an additional 1 cm before being released, so the oscillation amplitude is the same for all of the masses.
The square root of the spring constant is directly proportional to an oscillating system's frequency, while the square root of the mass is inversely proportional.
As a result, the system with the greatest frequency also has the largest spring constant and lowest mass.
We shall compare the masses since, based on the available data, we are unable to tell which system has the largest spring constant.
m1 Equals 0.5 kg in System 1.
System 2: 0.8 kg/m2
System 3: 1.2 kg/m3
We can determine the frequencies of each system using the frequency formula:
f1 = (1 / 2)*(k / m1), f2*(k / m2)*(k / m3), and f3*(1 / 2)*(k / m3)
We can compare the frequencies by looking at the mass terms because the spring constant is the same for all three systems:
F1 = 1/M1 = 1/0.5 = 1.414 F2 = 1/M2 = 1/M8 = 1.118 F3 = 1/M3 = 1/M2 = 1/M3 = 0.912
System 1 therefore operates at the greatest frequency, followed by systems 2 and 3.
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a drag chute must be designed to reduce the speed of a 3000-lb dragster from 220 mph to 50 mph in 4 sec. assume that the drag force is proportional to the velocity.what value of the drag coefficient k is needed to accomplish this?how far will the dragster travel in the 4-sec interva
Assuming that the drag force is proportional to the velocity, the dragster will travel approximately 392 meters during the 4-second interval.
To find the value of the drag coefficient k, we can use the following formula:
F = kv
where F is the drag force, k is the drag coefficient, and v is the velocity of the dragster.
At the initial velocity of 220 mph, the drag force is given by:
F₁ = kv₁
where v₁ is the initial velocity of 220 mph. Similarly, at the final velocity of 50 mph, the drag force is given by:
F₂ = kv₂
where v₂ is the final velocity of 50 mph.
During the 4-second interval, the average velocity of the dragster is:
vavg = (v₁ + v₂)/2 = (220 mph + 50 mph)/2 = 135 mph
Converting to SI units:
vavg = 60.54 m/s
The change in velocity during the 4-second interval is:
Δv = v₂ - v₁ = 50 mph - 220 mph = -170 mph
Converting to SI units:
Δv = -76.02 m/s
The acceleration of the dragster during the 4-second interval is:
a = Δv/t = (-76.02 m/s)/4 s = -19.01 m/s²
The drag force acting on the dragster is:
F = ma
where m is the mass of the dragster, which is given as 3000 lb, or 1360.78 kg (converting to SI units). Substituting the given values, we get:
F = (1360.78 kg)(-19.01 m/s²) = -25,874.8 N
At the initial velocity of 220 mph, the drag force is:
F₁ = kv₁ = k(220 mph) = 97.97 kN
Similarly, at the final velocity of 50 mph, the drag force is:
F₂ = kv₂ = k(50 mph) = 22.37 kN
Using the given information, we can set up the following system of equations:
F₁ - F₂ = -25,874.8 N
(97.97 kN) - (22.37 kN) = -25,874.8 N
Solving for k, we get:
k = (-25,874.8 N)/(170 mph) = (-25,874.8 N)/(76.02 m/s) ≈ -340.83 Ns²/m
Therefore, the drag coefficient k that is needed to reduce the speed of the dragster from 220 mph to 50 mph in 4 seconds is approximately -340.83 Ns²/m.
To find how far the dragster will travel in the 4-second interval, we can use the formula for distance traveled under constant acceleration:
d = vi × t + (1/2)at²
where vi is the initial velocity, t is the time interval, a is the acceleration, and d is the distance traveled.
Substituting the given values, we get:
d = (220 mph)(4 s) + (1/2)(-19.01 m/s²)(4 s)²
Converting the initial velocity to SI units:
d = (98.10 m/s)(4 s) + (1/2)(-19.01 m/s²)(16 s²) ≈ 392 m
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as an electric field gets stronger, does the distance between equipotential lines increase, decrease, or stay the same?
As the electric field gets stronger, the distance between equipotential lines decreases.
What is an Equipotential line?Equipotential lines are hypothetical paths through space that link places with an identical electric potential. Equipotential lines, then, are a group of electric field sites where the electric potential is constant. These lines enable a way to see and comprehend the electric field in a specific area because they are always perpendicular to the electric field lines at every point.
In several branches of physics, including electrostatics, electromagnetism, and quantum mechanics, equipotential lines are helpful. They are used to explain and comprehend how charged particles and electric fields behave.
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Please answer these question asap.
An airplane flies 170km in 15 min in the given case.
To find the average speed, we divide the total distance by the time taken:
Average. speed = Total distance / Time taken
In this case, the total distance is 170 km and the time taken is 15 min. However, it's more common to express speed in km/hr, so we need to convert 15 min to hours:
15 min = 15/60 = 0.25 hours
Now we can calculate the average speed:
Avg. speed = 170 km / 0.25 hours = 680 km/hr
Therefore, the average speed of the airplane is 680 km/hr.
Q1b. Sarah rides her horse with a constant speed of 20 km/hr. How far can she travel in 4 hours?
To find the distance Sarah can travel in 4 hours, we multiply her speed by the time:
Distance = Speed x Time
In this case, Sarah's speed is 20 km/hr and the time is 4 hours, so:
Distance = 20 km/hr x 4 hours = 80 km
Therefore, Sarah can travel 80 km in 4 hours on her horse.
Q2a. An airplane flies at a constant speed of 780 miles per hour. How long will it take to travel a distance of 2635 miles?
To find the time it takes the airplane to travel a distance of 2635 miles, we divide the distance by the speed:
Time = Distance / Speed
In this case, the distance is 2635 miles and the speed is 780 miles per hour, so:
Time = 2635 miles / 780 miles per hour ≈ 3.38 hours
Therefore, it will take the airplane approximately 3.38 hours to travel a distance of 2635 miles at a constant speed of 780 miles per hour.
Q2b. An airplane flies at a constant speed of 540 miles per hour. How long will it take to travel a distance of 2160 miles?
To find the time it takes the airplane to travel a distance of 2160 miles, we divide the distance by the speed:
Time = Distance / Speed
In this case, the distance is 2160 miles and the speed is 540 miles per hour, so:
Time = 2160 miles / 540 miles per hour = 4 hours
Therefore, it will take the airplane 4 hours to travel a distance of 2160 miles at a constant speed of 540 miles per hour.
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0
Select the correct location on the image.
Objects A and B are brought close to each other. Object A will soon become positively charged. Identify the charge that must transfer for this situation to
occur.
+
A
Recet
Next
+
B
The charge that must transfer for object A to gone positively charged is the negative charge in object A.
What do you mean by the charge ?The physical characteristic of matter that causes it to feel a force when exposed to an electromagnetic field is called electric charge.
The two types of electric charges that protons and electrons most frequently carry are positive and negative charges. Charge movement is what produces energy.
An object can either be negatively charged or positively charged. An object is positively charged when it includes more protons than electron.
Thus, for object A to be positively charged, the charge that must shift for object A to become positively charged is the negative charge.
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Your question is incomplete, most probably your question was as below, and missing part is attach in image below.
Select the correct location on the image.
Objects A and B are brought close to each other. Object A will soon become positively charged. Identify the charge that must transfer for this situation to occur.
+
A
B
A baggage handler drops your 10 kg suitcase onto a conveyor belt running at 1.5 m/s. The materials are such that s = 0.50 and k = 0.20. How far is your suitcase dragged before it is riding smoothly on the belt?
The suitcase is dragged approximately 0.58 meters before it is riding smoothly on the conveyor belt.
What is drag force?Drag force is a force that resists the motion of an object through a fluid (such as air or water) due to the frictional forces between the object's surface and the fluid.
Here,
The initial velocity of the suitcase is zero since it was dropped from rest. The suitcase will accelerate until the kinetic friction force between it and the conveyor belt matches the force of gravity acting on it, resulting in a constant velocity. We can use the following equation to find the distance traveled by the suitcase until it reaches a constant velocity:
[tex]d = (v_f^2 - v_i^2) / (2 * \mu* g)[/tex]
We know the final velocity of the suitcase is 1.5 m/s, the coefficient of kinetic friction is 0.20, and g is 9.81 m/s^2. Substituting these values into the equation, we get:
[tex]d = (1.5^2 - 0) / (2 * 0.20 * 9.81)[/tex]
d ≈ 0.58 meters
Therefore, the suitcase is dragged approximately 0.58 meters before it is riding smoothly on the conveyor belt.
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several small molecules are important to biochemical systems. you have isolated one of these and to identify it you determine its molar mass. you release 0.37 g of the gas into a flask with a volume of 732 ml at 21 °c. the pressure in the flask is 209 torr. what is the unknown gas?
The molar mass of 34.26 g/mol corresponds to the molar mass of nitrogen gas (N2) which is 28.02 g/mol. So the unknown gas is probably nitrogen.
To identify an unknown gas, we need to determine its molar mass. You can use the ideal gas law to calculate the molar mass. The ideal gas law is:
PV = nRT
where P is pressure, V is volume, n is number of moles, R is gas constant, and T is temperature in Kelvin. To calculate the molar mass, rearrange the ideal gas law and solve for n.
n = PV/RT
The value of the gas constant R is 0.0821 L-atm/mol-K. To convert temperature to Kelvin, add 273.15 to the temperature in °C. Pressure must be converted from torr to atm. One atmosphere equals 760 torr, so:
P = 209 torr / 760 torr/atm
P = 0.2758 atmospheres
Additionally, we need to convert the volume from mL to L. 1 L = 1000 mL, V=732mL/1000mL/L
V = 0.732L
Now that we have all the values we need, we can plug them into the ideal gas law equation to calculate the number of moles.
n = 0.2758 atm * 0.732 L / (0.0821 L-atm/mol-K * (21 + 273.15 K))
n = 0.0108 mol. The mass of the gas is given as 0.37 g, so the molar mass can be calculated as
molar mass = mass / mol
= 0.37 grams/0.0108 moles
= 34.26 g/mole
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Bonjour est ce que on peux m'aider pour cet exercice de mon dm de physique svp:
Convertir les masses proposées dans l’unité demandée :
3,2 kg = ………………………g =.............................................. mg
150 kg = ……………………….t =...........................................g
257 g = …………………………kg =....................................... t
a student is playing with a magnetic compass near a bar magnet. at a range of 10 cm, they notice that the compass needle is pulled slightly towards the magnet. what would they see if the compass was kept at the same distance, but moved to the other end of the magnet?
Needle will be pushed away form the magnet if the compass was kept at the same distance, but moved to the other end of the magnet
When the magnetic field of the bar magnet intercepts the magnetic field of the compass needle, the compass needle deflects because it encounters a distinct magnetic field.
Needle of the magnetic compass is deflected when a bar magnet is brought up to a magnetic compass. As the north pole of the magnet is brought close to the compass, the needle's south side is drawn to it. Needle will be pushed away form the magnet if the compass was kept at the same distance, but moved to the other end of the magnet.
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Two newspapers Graphic and Times. delivered to 40 houses in house receives at least news newspaper. In at all of Graphic and 24 com topic copies. 26 copies of of Times are are delivered. Find the number of who which receive Times only. houses in Adentan. Each one copy of
a capacitor is a device that is used to store up electrical potential energy. it consists of three parts sandwiched tightly together. charges from one of the outer pieces are pumped around the circuit onto the other outer layer. in order for the capacitor to be able to build up as much potential as possible, what type of material should the middle layer be made of?
It is made up of three pieces that are closely packed together. Particles from one of outside parts are pumped all around circuit onto the second outer layer.
What makes it a capacitor?Because of this, the capacitor is occasionally referred to as the capacitor. A passive element is known as a capacitor because it can store more electric power than a comparable element when employed as an insulator and insulated conductor.
What does a symbol for a capacitor mean?The capacitor symbol must show the construction of the capacitor as two lines, either flat and curved, close but not touching.
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When a boxer is moving away from a punch, the force experienced is reduced because______
When a boxer is moving away from a punch, the force experienced is reduced because C) increased.
What is force of impact of collision?The force created when things collide is known as the force of impact. The impact or hitting power of your vehicle increases as you increase your speed. The force of impact rises with the square of the increase in speed, according to the rules of physics.
When you throw a punch, you'll apply force to the target by using the momentum that was built during the action and the addition of the snap. This results in impulse (force x time). You may transfer a lot of impulse to the target area and build momentum if you do so.
Therefore, option C is correct.
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missing options
A) no different, but the timing is different
B) decreased
C) increased
D) all of the above
Miss
case of 16 calculators,
which she got for half
price. Shipping was $12.
which brought the total
to $100. What is the full
price for a case?
Miss case of 16 calculators, which she got for half price. Shipping was $12. Which brought the total to $100. The full price for a case is $176.
What is calculation?A calculation is a deliberate mathematical process that transforms one or more inputs into one or more outputs or results.
Here the price of the calculator has to be calculated
The total price including the shipping is $100
She got 16 calculators
Shipping was $12
100 - 12 = 88
Since there was half price.
88 x 2 = $176
Therefore, the full price for a case is $176.
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