When the vapors expanded, the work was always positive, hence the energy is even less than 100 jewels. Therefore, this scenario is not plausible.
How much energy is one joule?
What is 1 J worth? It is sufficient to raise the temperature of a kilogram of water by one degree Celsius. A cup of coffee may be heated from ambient temperature to 50°C in roughly 12,000 J. A joule is therefore not a large amount of energy.
What other way can you express a joule?
In addition, one joule is equal to one watts of electricity radiated or lost each second. A developed SI unit of power is the joule. In addition to one megawatt second, one joule is also equal to 107 aerobic workouts, 0.2390 calories, and 0.738 foot-pound. The emblem of
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true/false. Lightning protection is achieved by providing an elevated well-grounded conductor that will more likely launch the upward-going discharge that connects with the downward moving leader, thereby providing a path to ground for the lightning current that does not go through the object to be protected.
The given statement, lightning protection is achieved by providing an elevated well-grounded conductor that will more likely launch the upward-going discharge that connects with the downward moving leader, thereby providing a path to ground for the lightning current that does not go through the object to be protected, is true.
What is Lightning protection ?Lightning protection is a system designed to protect a structure or facility from damage caused by a lightning strike. This is typically achieved by providing a path for the lightning current to safely pass through the structure and into the ground, rather than allowing it to damage or destroy the building or its contents. One common method for achieving lightning protection is by installing an elevated, well-grounded conductor, such as a lightning rod, that will more likely launch the upward-going discharge that connects with the downward moving leader, providing a path to ground for the lightning current. This prevents the current from passing through the protected structure and reduces the risk of damage. Other methods such as lightning arrestors, surge protection devices and earthing are also used as a part of lightning protection system.
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NASA's space shuttle program in Florida will end in 2011. Which of these would be the most likely outcome of this event on the locations near the space center?
increase in number of restaurants and decrease in unemployment
increase in tourism and decrease in use of space technologies in homes
increase in unemployment and decrease in profit made by local businesses
increase in profit made by construction companies and decrease in use of space technologies in homes
NASA's space shuttle program in Florida will end in 2011. Increase in tourism and decrease in use of space technologies in homes would be the most likely outcome of this event on the locations near the space center.
What is NASA?
The U.S. federal government's autonomous National Aeronautics and Space Administration (NASA) is in charge of the civil space programme, as well as space and aeronautics research.
NASA was created in 1958 to provide the American space development effort a distinctly civilian orientation, stressing peaceful applications in space science. It succeeded the National Advisory Committee for Aeronautics (NACA).
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Zookeepers carry a stretcher that holds a sleeping lion. The total mass of the stretcher and lion is 175 kg. The lion's forward acceleration is 2 m/s². What is the force necessary to produce this acceleration?
Answer:
350 N [Forward]
Explanation:
Recall the equation for force
Force (N) = mass (kg) * acceleration (m/s²)
or
F = ma
You're given the mass of the stretcher and lion combined is 175kg. Because the lion is in the stretcher, we treat can treat them as one body.
m = 175 kg
You also know the stretcher and lion body is accelerating at 2 m/s².
You have all the information needed to solve.
F = ma
= (175 kg)(2 m/s²)
= 350 N
Because Force is a vector quantity, you have to say the direction. The direction is simply "forward" so make sure to write forward to complete your answer like:
350 N [Forward]
what causes a bullet or projectile to travel down the barrel of a firearm and exit at the muzzle? a, direct force from the strike of the firing pin direct force from the strike of the firing pin b, explosion of the primer mix explosion of the primer mix c, expanding gasses from the burning gunpowder expanding gasses from the burning gunpowder d, compression of the cartridge casing compression of the cartridge casing
Correct option is B, explosion of the primer mix explosion of the primer mix causes a bullet or projectile to travel down the barrel of a firearm and exit at the muzzle.
An object that is propelled by the application of an external force and then moves freely while being affected by gravity and air resistance is referred to as a projectile. Projectiles are generally used in sports and warfare, despite the fact that any item traveling through space is a projectile.
Projectile motion has many uses in both physics and engineering. Examples include the motion of any ball in sports, fireworks, and meteors entering the Earth's atmosphere. These things are known as projectiles, and the path they take is known as a trajectory.
An item or particle that is propelled into a gravitational field, such as from the surface of the Earth, and moves along a curved route only under the influence of gravity is said to be experiencing projectile motion.
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3500W of power is applied to lift a computer up 1 meter from the ground and place it on a table. It takes 3 seconds to lift the computer. Calculate its weight in Newtons
Answer:
[tex]10500\; {\rm N}[/tex], assuming that the motion is at constant speed.
Explanation:
To find the work that was done, multiply power by time:
[tex]\begin{aligned}(\text{work}) &= (\text{power})\, (\text{time}) \\ &= (3500\; {\rm W}) \, (3\; {\rm s}) \\ &= 10500\; {\rm J}\end{aligned}[/tex].
Assume that the computer was lifted at a constant speed. The force that lifted the computer would be constant and equal to opposite of the weight of the computer.
Since force is constant, divide work by displacement to find this force:
[tex]\begin{aligned}(\text{force}) &= \frac{(\text{work})}{(\text{displacement})} \\ &= \frac{10500\; {\rm J}}{1\; {\rm m}} = 10500\; {\rm N}\end{aligned}[/tex].
In other words, the magnitude of the force that lifted the computer is [tex]10500\; {\rm N}[/tex]. Under the assumption that the computer was lifted at constant velocity, the weight of the computer would have the same magnitude, [tex]10500\; {\rm N}\![/tex].
If you are having trouble making auto loan payments and are really following a tight budget, w
hich recommendation below represents the WORST advice?
(2 Points)
O
Find an extra source of income by taking a second job, working longer hours, or borrowing from family
if they can afford to help
Stop making payments on some of your debts so you can focus on getting the most expensive or
largest debts under control
Continue making all payments and call your lenders and see if you can negotiate lower monthly pay-
ments, lower interest rates, or longer terms
O Explore whether a free or non-profit credit counseling service could help
Worst Advice : Stop making payments on some of your debts so you can focus on getting the most expensive or largest debts under control.
What is a Loan ?A loan occurs when one or more people, businesses, or other entities lend money to other people, businesses, or other entities. The receiver incurs a debt and is often responsible for both the main amount borrowed as well as interest payments until the loan is repaid.
A loan is when money is lent to another person with the understanding that it would be repaid, along with interest. Before agreeing to provide a borrower a loan, lenders will take into account the borrower's income, credit score, and degree of debt.
The sum of money that must be paid each week or month to fulfill the loan's requirements. An amortization table may be used to calculate this based on the principal, loan period, and interest rate.
The worst recommendation that one can make about loan payment if he or she is facing trouble in doing the same is Stop making payments on some of your debts so you can focus on getting the most expensive or largest debts under control.
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a beam of microwaves has a frequency of 1.0 times 109hz, a radar beam has a frequency of 5.0 times 1011th hz which type of radiation has the longer wave length
A beam of microwave having a frequency of 1.0 times 109hz will have a longer wavelength.
Microwaves and radar are two types of electromagnetic radiation that are used in a variety of applications. The frequency of a microwave is 1.0 times 109hz, while the frequency of a radar beam is 5.0 times 1011th hz.
When comparing the two, the radar beam has a much higher frequency, but the microwave has the longer wave length.
To calculate this, we can use the equation c = λf, where c is the speed of light, λ is the wavelength, and f is the frequency. Using this equation, we can calculate that the wavelength of the microwave is 3.00 x 10-2 meters, while the wavelength of the radar beam is 6.00 x 10-3 meters. Therefore, the microwave has the longer wave length.
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a force of 100 n is required to move the smae object of 20 m/s find the coefeicent of kentixc friction
The coefficient of kinetic friction, also known as the "friction coefficient", is a dimensionless value that represents the amount of friction present between two surfaces in motion relative to one another.
To find the coefficient of kinetic friction for an object, one would need to measure the force required to keep the object moving at a constant velocity, and divide that force by the object's weight. The coefficient of kinetic friction (μk) can be calculated using the following equation:
μk = force of friction / normal forceTo find the normal force, we need to know the weight of the object which can be calculated by multiplying the mass of the object (m) by the acceleration due to gravity (g).
Weight = m * gIn this case, the force required to move the object at a constant velocity of 20 m/s is 100 N, and therefore the coefficient of kinetic friction can be calculated by dividing that value by the object's weight.
If the weight of the object is not provided and we only know the force required to move it, we can't calculate the coefficient of kinetic friction.
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An electron is in a vacuum near the surface of the Earth. Where should a second electron be placed so that the electrostatic force it exerts on the first electron balances the gravitational force on the first electron due to Earth?
For the electrostatic force the second electron exerts on the first electron to counteract the gravitational force the first electron experiences from the Earth, the second electron must be placed below the first one.
In order for the repulsive force (working on the first) to be in the direction opposed to the pull of Earth's gravity, the second electron must be below the first one.
Repulsive force on electron=Weight of electron.
[tex]\frac{K*q*q}{D^{2} }[/tex] = m*g
K(In air)=9 x 10^9 Nm^2/C^2
q=-1.602 x 10^-19 C
Replacing values
D=5.08 m
Therefore, the second electron needs to be 5.08 m below the first electron in question.
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what is the magnitude of the change in momentum of the 1000 kg of water?express your answer with the appropriate units.
The change in momentum of the 1000kg of water is zero, in other words, the momentum before and after the bend is the same.
What is change in momentum?The change in momentum (Δp) of an object is the final momentum (pf) minus the initial momentum (pi). Since the mass is constant and the direction of the velocity is changed by 90 degrees, the magnitude of the change in momentum can be calculated as:
Δp = m × (vf - vi) = 1000 kg × (1.4 m/s - 1.4 m/s) = 0 kg-m/s
The direction of the change in momentum is perpendicular to the direction of velocity change, in this case, it's in the vertical direction.
So, the change in momentum of the 1000kg of water is zero, in other words, the momentum before and after the bend is the same.
This means that no force is required to change the direction of the water, but the pipe needs the thrust block to hold it in place since the force of the water moving at high velocity could cause the pipe to move or even break.
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The complete question is as follows:
a store owner plans to hang a sign weighing 750 n so that cable a, attached to the store, makes a 30.0 degree angle to the vertical side of the building. cable b is horizontal and attached to an adjoining building. what is the tension in cable b?
A remains constant, the tension in cable B can be calculated using the formula T = W/sin(θ), where T is the tension, W is the weight of the sign, and θ is the angle formed by cable A. the tension in cable B is 750N/sin(30°) = 1333.38N.
what is cable ?
Cable is a type of wiring system used to transmit electrical signals. It consists of insulated conductors, usually copper, twisted together in a pattern that reduces interference from external sources. Cables are often used to connect components within a system, such as computers, televisions, and audio systems.
They can also be used to connect systems to each other, such as connecting a laptop to a router or connecting a router to a modem. Cables can be used to carry data as well as power. Depending on the type of cable, it can support various types of data transfer speeds and resolutions. For example, HDMI cables are used to transmit audio and video signals in high-definition.
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a space shuttle changes its circular orbit to a lower altitude. what is the work done on the shuttle?
The work done on the shuttle will be negative, if its changes its circular orbit to a lower altitude.
The gravitational force between the object and the earth is balanced by the centrifugal force acting on the object during the circular motion. If a satellite of mass m, orbits around the earth in a circular path of radius R, then centrifugal force will be, mv²/R.
if the mass of the earth is M, and universal gravitational constant is G, then gravitational force between the earth and the satellite would be GMm/R².
mv²/R = GMm/R²
mv² = GMm/R
0.5mv² = 0.5GMm/R
But 0.5mv² = K = Kinetic energy of the satellite
K = 0.5GMm/R
So lesser the radius of the orbit, more the kinetic energy will be required for the satellite to orbit around the earth. So the work will be done by the orbit, in other words the work done on the satellite will be negative because it is done by the satellite.
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Curling is a sport played with 20kg stones that slide across an ice surface. Suppose a curling stone sliding at 1m/s strikes another stone and comes to rest in 2.5 m/s.Approximately how much force is on the stone during impact. 160N 800N 1600N or 8000N160N
The stone exerts an impact force of 8000 N.
In the ice-based team sport of curling, two teams alternate sliding granite stones in the direction of a goal known as a House.
It is a winter Olympic and Paralympic sport that features medal divisions for mixed wheelchair teams, men's, women's, and mixed doubles teams. The goal of a game is to accumulate points by moving your stones closer than your opponent's stones to the center of the house, or the "button."
The calculation can be done as follows
mass= 20 kg
velocity= 1 m/s
t= 1ms to secs
= 1× 10⁻³
Force= 20 × 1/2.5 × 10⁻3
= 20/2.5 ×10⁻³
= 8000
Consequently, 8000 N of force is exerted on the stone during impact.
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Calculate the magnitude of gravitational force between two 1-kilogram masses separated center to center by 1 meter.
When two objects of equal mass are maintained at a distance of one meter apart, their gravitational pull is equal to 6.67*10^(-11).
The gravitational force (F) must be calculated using the equation shown below. All objects with mass are drawn toward one another by the gravitational attraction, whose strength is directly proportional to the masses of the two objects and inversely proportional to the square of their separation from one another.
As a result, the only remaining unit is newtons, or meters kilograms per second squared. Therefore, there is a 1.98 x 10^(-20) newton gravitational force between the Earth and the Moon.
Here r= 1, both masses m1=m2= 1
Magnitude F= 6.67*10^(-11)
[tex]F= Gmm/r^{2} \\G= 6.67*10^{-11}[/tex]
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if the circuit has a current of 0.021a, what must the electrical potential difference across the battery be?
To calculate electrical potential difference across the battery, the resistance of the circuit is required. Therefore the given question is incomplete.
Describe resistance.The ability of the material to restrict the flow of current is referred to as resistance. It is symbolized by the letter 'R'. The ohm, frequently written as a word and sometimes represented by the Greek letter omega, is the unit of resistance that is commonly used.
How does resistance develop in a circuit?As electrons pass from a conductor, such a metal wire, an electric current occurs. The atoms in the metal may clash with the travelling electrons. Resistance is created as a result, making it more challenging is for current to flow.
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Immediately after time t=0, what happens to the charge on the capacitor plates?Check all that apply.Individualcharges flow through the circuit from the positive to the negativeplate of the capacitor.Individualcharges flow through the circuit from the negative to the positiveplate of the capacitor.The positiveand negative charges attract each other, so they stay in thecapacitor.Currentflows clockwise through the circuit.Currentflows counterclockwise through the circuit.
Immediately after time t = 0, the positive and negative charges attract each other, so they stay in the capacitor. Current flows clockwise through the circuit.
The capacitor plates' charges have been divided after time t=0, leaving one plate with a positive charge and the other with a negative charge. The attractive force between the positive and negative charges will now cause the charges on the plates to remain in place. In the circuit, current also moves in a clockwise direction. This is due to the fact that the positive charges will travel toward the positive plate, and the negative charges will move toward the negative plate, causing a current to flow clockwise through the circuit.
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a 800 n man is standing on a 4 m long plank of wood that is supported at each end by vertical ropes. the plank has a weight of 500 n and the man is standing 1 m from the left end. find the force of tension in the rope at the left end of the plank.
On the a 4 m long board of wood with vertical rope supports at either end, an 800 n man stands. Mass of work and scaffold = 800 N + 500 N = 1300 N, as well as the man stands 1 m from of the left end of the board.
What does tension force mean?The force transferred through a rope, string, or wire when pushed by forces acting from different sides is referred to as tension. Its tension force is applied along the entire length of the cable and exerts an equal amount of strain on the bodies at each end.
What is tension force measured in?In the International Systems of Units, tension is measured in newtons or pounds-force as a transmitted force, an action-reaction combination of forces, or a restoring force.
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if you wish to reduce the stress (which is related to centripetal force) on high-speed tires, would you use large- or smalldiameter tires? explain.
You wish to reduce the stress of some vehicle that should move at some velocity v, and as want to know what tires would be better (i.e., have less centripetal force). we can write the centripetal force as)
= F = m* v^2 / r
This gives the force on a point mass m moving in a circle with radius r with the velocity v. randomly the (absolute value of the) velocity of the point throughout the circle is the similar as the velocity of your vehicle.
Hence, if you decide to hold the speed constant and reduce the centripetal force, this says you to expand the diameter of the tires.
Now what about the second equation:
F = m* r* w^2
F, m and r are the similar as above, but w (even the small Greek letter omega) is the angular velocity. It says you how much time it needs for the wheel to turn by a definite angle.
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Name some situation where charges occurs naturally
Some situations where charges occur naturally are lightning during thunderstorms.
What are the charges that exist in nature?There are two kinds of electric charge: positive and negative (commonly conveyed by protons and electrons individually). Examples of the types of charges are subatomic flecks or the particles of matter: Protons are positively charged. Electrons are negatively charged. Neutrons have naught charges.
Due to the apparent additional nature of the charge, the total electric charge of such a structure would be equal to the algebraic summation of the electric charges present all around the structure or system. The rule of superimposition of electric charge explains the compelling nature of the charge.
So we can conclude that Charging by Friction When two things are rubbed against each other
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Lightning, Friction,Electrostatic Induction, Piezoelectricity, Thermoelectricity, Photoelectric effect and Cosmic ray
What are several situations where charges can occur naturally?Lightning: During a thunderstorm, charges can build up in the atmosphere due to the movement of water droplets and ice particles. This can result in a lightning strike, which is a discharge of electricity through the atmosphere.
Friction: When two materials rub against each other, electrons can be transferred from one material to the other, resulting in a separation of charges. This is known as the triboelectric effect.
Electrostatic Induction: Electric charges can be induced on an object by bringing it near a charged object without making contact.
Piezoelectricity: Certain materials, such as quartz crystals, can generate a voltage when they are under mechanical stress, resulting in the separation of charges.
Thermoelectricity: A temperature difference between two materials can cause a flow of charge carriers, resulting in a voltage difference between the two materials.
Photoelectric effect: When light hit a metal surface , electrons are emitted from the surface and produces charge.
Cosmic ray: Cosmic rays are high-energy particles that come from outer space, which can ionize atoms and molecules in the atmosphere, resulting in the separation of charges.
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Describe the changes occur while mixing of two ideal gases Match the words in to the appropriate blanks in the sentence. Ideal gases mix because whilemong the ____ of Ideal gases ____
Entropy, Increases, enthalpy, decreases, potential energy
Ideal gases mix because while mixing the entropy of the system increases and the enthalpy decreases.
Entropy is a measure of the disorder of a system, the more disorder a system has the higher its entropy. Ideal gases have high entropy because their molecules are in constant random motion and have a large number of possible microstates. When two ideal gases mix, the number of microstates increases, leading to an increase in entropy.
Enthalpy is a measure of the total energy of a system, including both internal energy and potential energy. Ideal gases have low enthalpy because they have low internal energy and low potential energy. Mixing two ideal gases reduces the potential energy between the molecules, leading to a decrease in enthalpy.
In summary, the mixing of two ideal gases results in an increase in entropy, and a decrease in enthalpy and potential energy. This is an example of how the mixing of gases leads to an increase in disorder in the system.
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Consider a runner in lane 1 with a speed v1 and a runner in lane 4 with a speed v4, where the ratio of the speeds v4/v1 is 2. The radius of lane 4 is b times the radius of lane 1, and both runners have the same mass. Which of the following claims is correct about the net forces F1 and F4 exerted on the runners in lanes 1 and 4, respectively
The net force F4 exerted on the runner in lane 4 will be 2 times the net force F1 exerted on the runner in lane 1.
What is newton's second law?
Newton's second law states that the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
This claim is correct because Newton's Second Law states that the net force on an object is equal to the mass times the acceleration of the object.
Therefore, since the runners have the same mass, the acceleration of the runner in lane 4 must be twice that of the runner in lane 1 to account for the difference in speed.
Since acceleration is directly proportional to the net force on an object, this implies that the net force F4 exerted on the runner in lane 4 is twice the net force F1 exerted on the runner in lane 1.
Therefore, The net force F4 exerted on the runner in lane 4 will be 2 times the net force F1 exerted on the runner in lane 1.
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A charge +Q is located at the origin and a second charge, +4Q, is at distance d on the X-axis.Where should a third charge,q , be placed, so that all three charges will be in equilibrium?Express your answer in terms of d .x=______________What should be its sign, so that all three charges will be in equilibrium?Negative or Positive?What should be its magnitude, so that all three charges will be in equilibrium?Express your answer in terms of Q .Q=______________
The third charge q should be placed in between +Q and +4Q so that all three charges will be in equilibrium. Hence, the sign and magnitude of third charge is -4Q/9 and position is d/3 distance from +Q.
What is coulomb's law?Coulomb's law asserts that the force of attraction or repulsion between two charged bodies is proportional to the inverse square distance between them and directly proportional to the product of their charges.
Coulomb's Law; F = Kq1q2/r2;
Net force = 0 (since, all three are in equilibrium )
KQq/x^2 = Kx4Qxq/(d-x)^2
1/x^2 = 4/(d-x)^2
=> 1/x = 2/(d-x)
=> x=> d/3
KQx4Q/(d)^2 + Kx4Qxq/(d-x)^2 = 0 (since, all three are in equilibrium);
=> Q/(d)^2 = - q/(d-d/3)^2
=> Q/(d)^2 = -q x 9/ 4xd^2
=> q= - 4Q/9
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an airplane travels 2750 km against the wind in 5 hrs and 3250 km with the wind in the same amount of time what is the rate of the plane in still in air and what is the rate of the wind?
We may utilize to determine the required wind speed to move persons and stuff. The formula is wind = 195 times the real number of the weight over the object's area in square feet.
What is speed and what is its unit in physics?The pace at which a distance changes over time is referred to as speed. It has a dimension of time-distance. As a result, the fundamental unit of time and all basic unit of travel are combined to form the Rectangular cross - section of speed. Thus, the metre per second (m/s) is the Input to the system of speed.
What does physics' law of speed entail?We can define our concepts first. Speed (s) is defined as the difference traveled per unit of time (d/t). Speed and furthermore a direction equals velocity.
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A resistor with resistance R and a capacitor with capacitance C are connected in series to an AC voltage source. The time-dependent voltage across the capacitor is given by VC(t)=VC0sin?t.What is the amplitude I0 of the total current I(t) in the circuit?Express your answer in terms of any or all of R, C, VC0, and ?.Expert Answer
The time-dependent voltage across the capacitor is give below in the expression.
What is voltage in plain English?Voltage is the term used to describe the "pressure" that drives electricity. A voltage is measured in volts (V), and greater voltages result in more electricity flowing to electronic equipment.
What is a voltage in amps?A "volt," a unit of electric potential, also known as electromotive force, is defined as "the potential difference between two points of a conducting wire carrying a continuous current of 1 ampere, where the power expended between these locations is equal to 1 watt." It appears that there is a one-volt potential, to put it another way.
The time-dependent voltage across the capacitor V(t)=V0 sin(wt)
The amplitude of total current is I0=V0/x
here x is th inductive capacitance =1/(wc)
so, I0=V0 *c*w
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6. How long must a 800 N net force act to produce a change in momentum of 400 kg·m/s? The force Fx acting on a 5kg particle varies in time as shown in the fig. below. F(N) 40 t(s) 4 8 12 16 20 a. What is impulse of the force? b. The average force exerted on the particle.
For part A. The impulse of the force is the area under the force-time graph. The figure you provided is not accessible to me, but if the graph is of a constant force over time, the impulse can be calculated as:
[tex]Impulse = force x time = (40 N) (20 s) = 800 N*s[/tex]
For part B. The average force exerted on the particle is the impulse divided by the time, it can be calculated as:
[tex]Average force = impulse / time = 800 N*s / 20 s = 40 N[/tex]
What is momentum?Momentum is a concept in physics that describes the tendency of an object to continue moving in the same direction at the same speed. It is a vector quantity, meaning it has both a magnitude and a direction. The momentum of an object is equal to its mass multiplied by its velocity.
In the context of finance, momentum refers to the rate of acceleration of price or volume changes in a security or market. It is often used by investors to identify trends and make investment decisions.
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which objective lens(es) should immersion oil never be in contact with to prevent damaging it(them)?
Only objectives labelled as "Oil" objectives should be used with immersion oil; if you attempt to use immersion oil on a dry objective lens, the objective is likely to break.
In order to keep immersion oil from penetrating dry targets, their structure is not properly sealed. When handled carefully—and preferably on a tripod—mirror lens can be utilized to capture beautiful images of landscapes, seascapes, cities, or any other subject that requires longer focal length lenses. A personal target is a goal that you have established. A military aim is the term used to describe the overall plan for an operation. Money-raising is the main objective of a bake sale. If your objective was to pick up, you have succeeded.
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A highway curves to the left with radius of curvature of 44 m and is banked at 16 ◦ so that cars can take this curve at higher speeds. Consider a car of mass 1563 kg whose tires have a static friction coefficient 0.72 against the pavement.How fast can the car take this curve without skidding to the outside of the curve?
The car can take the curve without skidding at speeds up to 15.3 m/s.
What is speeds?Speeds refer to the rate of motion or operation of a machine, vehicle, or process. It can also refer to the rate of change of a variable. Speeds are often expressed in terms of the time it takes to travel a certain distance, the distance traveled in a certain amount of time, or the rate of rotation or revolution. Speeds can be measured in linear units such as meters per second or miles per hour, or in angular units such as revolutions per minute. Speed is an important factor in many activities, including transportation, sports, and manufacturing.
The maximum speed at which the car can take the curve without skidding to the outside of the curve is determined by the maximum static frictional force between the tires and the pavement, which is equal to the product of the normal force on the tires and the coefficient of static friction.
The normal force on the tires is equal to the weight of the car and can be calculated as follows:
Normal force = 1563 kg * 9.8 m/s2 = 15,319 N
The maximum static frictional force is then calculated as follows:
Maximum static frictional force = Normal force * coefficient of static friction = 15,319 N * 0.72 = 11,036 N
The maximum speed at which the car can take the curve without skidding is determined by the centripetal force of the car, which is equal to the product of the mass of the car, the speed of the car, and the radius of curvature of the road.
Therefore, the maximum speed of the car can be calculated as follows:
Maximum speed = sqrt(Maximum static frictional force/ Mass of car * Radius of curvature)
= sqrt(11,036 N / 1563 kg * 44 m)
= 15.3 m/s
Therefore, the car can take the curve without skidding at speeds up to 15.3 m/s.
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Does the displacement of an object depend on the specific location of the origin of the coordinate system
Nope, your reference point can be anywhere because displacement is simply the change in position. So regardless of where your origin is, the change in position (displacement) is independent.
What is an example of a displacement?Alteration in an object's location in relation to a reference frame is known as displacement. For instance, a billiards ball travels from one spot to another as a player strikes it. It is alleged to have moved. A vector quantity with the both magnitude and direction is displacement.
Are displacement and distance the same thing?Sometimes people mistakenly believe that length and displacement are simply two different labels for the same thing. Displacement and distance, however, are two distinct ideas. The total distance covered is larger than movement between those two places if an item changes direction while traveling.
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The number of cycles of a wave that passes a stationary point in one second is called its Select one: a. crest b. trough c. frequency d. wavelength
The speed of a waveform can be calculated by the number the crests who pass through a given location in a given period of time. A is the proper answer.
What is the sound's frequency?The frequency with which a sound level wave repeats itself all the second is its frequency, which is often referred to as pitch.The sound's frequency is the opposite of its period. if a wave has a short wavelength. Undoubtedly, the wave will have a lower number. Lower frequency is indicated by a longer wavelength.
What is the musical frequency?The speed of something like the vibration, or frequency, determines the sound's pitch. It is only applicable or relevant for musical when the waveform is extremely regular. Frequency
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honeybees can see light in the ________ range of the electromagnetic spectrum.
A. beta
B. infrared
C. ultraviolet
D. gamma
The ultraviolet portion of the electromagnetic spectrum is visible to honeybees.
Ultraviolet (UV) light has shorter wavelengths than visible light. Some insects, like bumblebees, can perceive UV light even though it is invisible to the human eye. This is akin to how a dog's hearing extends just beyond the range of human hearing. The Sun emits the entire spectrum of ultraviolet radiation, which is commonly divided into UV-A, UV-B, and UV-C. These are the categories that are used in earth sciences the most frequently. Our atmosphere almost completely absorbs the most harmful UV-C rays. The sunburn is brought on by the harmful UV-B rays. When exposed to UV-B light, living things are more vulnerable to DNA and other cellular damage.
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