When air at 1000 mb is lifted to 700 mb, it will be colder than the surrounding air.
This represents an unstable condition, as the air is not able to stay in its current state and is forced to move up and away from its original position. This creates a situation where the colder air is more dense and is more likely to sink back down towards its original position.
In an unstable condition, the air is constantly moving and shifting, making it difficult to predict what the weather conditions will be.
This condition is considered to be unstable because the air has become less dense than the air around it. As the air rises and cools, the air molecules condense and form clouds which can lead to the development of storms.
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what is the amplitude of the wave? express your answer to two significant figures and include the appropriate units.
The particle's maximum displacement from its mean position is measured by its amplitude, which in the graph equals 6 cm. The wavelength is 1.20 nm, and the frequency is 1.67 hz.
A periodic wave's wavelength, or the distance over which the wave's shape repeats, is its spatial period. It is the separation between adjacent spots on a wave that correspond to the same phase. Displacement refers to the idea that something has moved or been shifted. The term "displacement" refers to a shift in an object's position. The following equation serves as a mathematical definition of it: is used to describe the final position's value.
f = 1/T f = 1/0.6 f = 1.67 mHz is the frequency.
Wavelength and frequency are combined to form the wave's speed.
v = f (lamda) lamda = v/f
lamda = v/f
lamda = 2/1.67
lamda = 1.20m
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If two types of cations are moving in opposite directions and they are the only ions moving, and the membrane potential is positive, the ion moving faster has
A greater concentration gradient.
The movement of ions across a membrane is driven by their concentration gradient, which is the difference in concentration of the ion on one side of the membrane compared to the other side.
If the membrane potential is positive, it means that there is a higher concentration of one type of ion on one side of the membrane compared to the other side.
If two types of cations are moving in opposite directions, the one moving faster is the one that has a greater concentration gradient, meaning that it has a higher concentration on one side of the membrane compared to the other side.
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a 65 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 3.0 m/s. (ignore small changes in gravitational potential energy.) how fast is he going as he lands on the trampoline, 3.0 m below?
An 65 kg trampoline performer jumps vertically and at a rate of 3.0 m/s from the top of such a platform. Take into account only huge changes in the gravitational potential energy. 0.31 meters is how long depress is.
How is potential energy defined?Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases. The potential energy of a steel ball is greater when it is raised above the earth than when it is brought to Earth.
How is GPE determined?If the masses of the items and the separation between them are known, it is possible to compute the gravitational potential energies in relation to two objects in space. You can determine the GPE by multiplying each object's.
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a 1.50-kg object is held 1.20 m above a relaxed mass- less, vertical spring with a force constant of 320 n/m. the object is dropped onto the spring. (a) how far does the object compress the spring? (b) what if? repeat part (a), but this time assume a constant air-resistance force of 0.700 n acts on the object during its motion. (c) what if? how far does the object compress the spring if the same experiment is performed on the moon, where g 5 1.63 m/s 2 and air resistance is neglected?
When a spring is distorted by an outside force agent, energy is stored within the spring. The work done and then employed to distort the spring constitutes the spring energy. Its deformation length squared determines how much energy a spring has.
Who or what represents spring energy?It is the energy held within a compressible or elastic substance, such as a spring, rubber band, or molecule. It also goes by the name elastic potential energy. It is determined by multiplying the movement's force by its distance. Without stretching, or in the typical position, the spring has no energy.
Which kind of energy does spring contain?Mechanical energy is the energy held under tension within objects. Rubber bands that have been stretched and compressed are two instances of mechanical energy storage.
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The number of wave crests passing a given point per unit time is given by
a. frequency
b. amplitude
c. wavelength
d. velocity
e. period
"The number of wave crests passing a given point per unit time is given by frequency."
The quantity of vibrations per unit of time is known as frequency, and with each vibration, a wave crest passes through a certain location. Thus, frequency is defined as the number of wave crests that pass a specific spot in a unit of time.
Wave frequency is the quantity of waves that pass a specific place in a predetermined amount of time. the amount of time it takes for two crests to pass one wavelength apart at a certain location. Most of the times, the wave period is expressed in seconds, e.g. one wave every 6 seconds. The unit of frequency is the Hertz.
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find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point located 3.0 m from the center of the circle.
A helicopter's huge blade is turning in a horizontal arc. From the blade's tip to the middle of the circle, it is 6.7 meters long. find the centripetal acceleration ratio
How does acceleration function? What is it?
Any procedure where the velocity varies is referred to as acceleration. There are just two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed as well as a direction.
What does typical acceleration mean?
typical acceleration The overall change in velocity during the specified interval multiplied by the total amount of time required for the change is the definition of mean acceleration over a particular period of time. It lasts for a specific amount of time.
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how are speed and velocity related? choose all that are true. group of answer choices speed is average velocity speed is the rate of change of velocity speed is the magnitude of velocity velocity is an object's speed and which direction its traveling speed and velocity can be measured in the same units speed and velocity have different units
Speed is the rate of change of distance, while velocity is the rate of change of position. Speed is a scalar quantity, which means it only has magnitude and no direction, while velocity is a vector quantity, which means it has both magnitude and direction. Therefore, all options except the first one are true. Speed can be measured in units such as meters per second (m/s).
Velocity has units of meters per second in a specific direction. This means that velocity is a vector quantity and has direction while speed is a scalar quantity and only has magnitude.
In short, speed is just a scalar representation of velocity, it tells you how fast an object is moving, but it doesn't tell you the direction of motion, whereas velocity tells you both the speed and the direction of motion.
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determine the reactions at the supports A and B for equilibrium of the beama. 200 N/m 4mb. 400N/m 3m
According to the question, 50 kN reactions at the supports A and B for equilibrium of the beama.
What is a physical example of equilibrium?When we move a body a tiny distance, the state creates forces that usually oppose the movement and bring the body back to its equilibrium, we say that the body is in stable equilibrium. Think of a stone at the base of a bowl as an illustration.
Since the laden beam is stationary, we should equalize each other out by moving upward and downward.
Thus,
= R+R
=40+60=100 kN - (1)
Now that the beam's force has been evenly distributed across the two supports, the reaction force exerted by the two supports will also be equally, or R=R.
2R=100 kN
R=50 kN
As a result, the reaction at supports A and B will each be 50 kN.
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At this radius, what is the magnitude of the net force that maintains circular motion exerted on the pilot by the seat belts, the friction against the seat, and so forth? answer in units of n.
The magnitude of the net force that maintains circular motion is 6.4 x 10^3 N.
Magnitude is a measure of the strength or intensity of something. It is often used to measure physical quantities such as size, force, energy, pressure, and speed. It can also be used to measure abstract concepts such as loudness, brightness, and happiness.
The magnitude of the net force that maintains circular motion can be found using the equation F = mv^2/r, where F is the net force, m is the mass of the pilot, v is the velocity of the pilot and r is the radius of the circular motion.
Assuming the pilot has a mass of 80 kg and the velocity of the pilot is 8 m/s, and the radius of the circular motion is 10 m, the magnitude of the net force that maintains circular motion is 6.4 x 10^3 N.
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The magnitude of the net force that maintains circular motion is 6.4 x 10³ N.
What is magnitude?Magnitude is a measure of the strength or intensity of something. It is often used to measure physical quantities such as size, force, energy, pressure, and speed. It can also be used to measure abstract concepts such as loudness, brightness, and happiness.
The magnitude of the net force that maintains circular motion can be found using the equation F = mv²/r, where F is the net force, m is the mass of the pilot, v is the velocity of the pilot and r is the radius of the circular motion.
Assuming the pilot has a mass of 80 kg and
the velocity of the pilot is 8 m/s,
and the radius of the circular motion is 10 m,
F = mv²/r
putting the values we get-
F = {80 kg × (8)²} / 10m
F = 6.4 x 10³ N
the magnitude of the net force that maintains circular motion is 6.4 x 10³ N.
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Which type of radioactive decay would produce a decay particle that would move along path A?
Which type of radioactive decay would produce a decay particle that would move along path A?
? decay
?+ decay
?? decay
? decay
The type of decay cannot be determined.
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A β decay particle would be created and would travel along path A.
A beta ray is released from an atomic nucleus during a radioactive decay process known as beta decay. The proton in the nucleus changes from a proton to a neutron during beta decay, and vice versa. The process of a proton into a neutron is called β+ decay. Similar to this, neutron to proton conversion is referred to as β- decay. Three common emissions come from radioactive decay that occurs naturally. When these emissions were first discovered, scientists couldn't tell them apart from other, well-known particles, so they gave them the names alpha particles, beta particles, and gamma rays. The first three letters of the Greek alphabet were used to name these particles.
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a body collides with an identical body that is initially at rest. after the collision, they stick together. what is the percentage of kinetic energy that has been transferred to other forms of energy in the collision?
In a perfectly inelastic collision, where the two bodies stick together after the collision, the percentage of kinetic energy transferred to other forms of energy is 100%.
How does the mass and velocity of the colliding bodies affect the amount of kinetic energy transferred to other forms of energy?The mass and velocity of the colliding bodies have a direct relationship with the amount of kinetic energy transferred to other forms of energy. A higher mass will result in a larger amount of kinetic energy being transferred, as more force is required to bring the two bodies to a stop. Similarly, a higher velocity will result in a greater amount of kinetic energy being transferred, as the bodies have more kinetic energy to lose during the collision. Both mass and velocity contribute to the total kinetic energy of the colliding bodies and therefore the amount of kinetic energy that will be transferred to other forms of energy in the collision.
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How much work can a motor with a power output of 31 W do in 8 s? Report your answer to the nearest whole number.
The quantity of energy transferred or transformed per unit of time is known as power.
What is Power?The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in ancient writings. A scalar quantity is power.
Power is related to other factors; for instance, the power required to move a ground vehicle is equal to the product of the vehicle's velocity, traction force on its wheels, and aerodynamic drag.
A motor's output power is calculated by multiplying its torque output by the angular velocity of its output shaft.
Therefore, The quantity of energy transferred or transformed per unit of time is known as power.
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An object placed in a graduated cylinder raises the volume from 12.2 mL to 14.5 mL. Find the volume of the object.
To find the volume of the object, you need to subtract the initial volume of the graduated cylinder (12.2 mL) from the final volume of the graduated cylinder plus the object (14.5 mL). So the volume of the object = 14.5 mL - 12.2 mL = 2.3 mL
What is volume?The volume of an object is a measure of the amount of space it occupies. It is typically expressed in units of cubic length, such as cubic meters (m^3), cubic centimeters (cm^3), or milliliters (mL).
The volume of an object can be determined using a variety of methods, depending on the shape and properties of the object. For example, the volume of a solid object can be found by measuring its length, width, and height, and multiplying them together. The volume of a liquid can be found by measuring its mass and density, or by using a graduated cylinder.
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A satellite follows the elliptical orbit shown. The only force on the satellite is the gravitational attraction of the planet. The satellite's speed at point a is
At the planet's centre, a satellite won't experience any torque. The spacecraft is moving at a speed of 8000 metres per second.
What is the name for a planet's gravitational pull?Weight refers to the gravitational pull of the earth on an object. Additionally, it is equal to the ratio of the object's mass to its gravitational acceleration.
Do satellites have elliptical orbits?Satellites circle their planets in elliptical patterns. The elliptical orbit lengthens if a satellite's speed is suddenly increased. A satellite's course is a parabola or a hyperbola if it has enough velocity to leave and never come back to the planet.
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Calculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm.
a. 4.85×10−19 J4.85×10−19 J.
b. 2.06×10−19 J2.06×10−19 J.
c. 8.13×10−19 J8.13×10−19 J.
d. 1.23×10−19 J1.23×10−19 J.
e. 5.27×10−19 J5.27×10−19 J.
Option A is correct.
The energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm is 4.85×10−19 J.
The formula to calculate the energy is:
E = hc/λ
Where
E is the energy, h is planck's constant, c is speed of light, and λ is the wavelength.
Putting the values in the formula:
E = 6.63×10^34 × 3.8×10^8/410.1 ×10^9
E = 4.85×10−19 J4.85×10−19 J.
Thus the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm is 4.85×10−19 J.
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Consider each of the electric- and magnetic-field orientations given next. In each case, what is the direction of propagation of the wave?A) E in the +xdirection,\vec Bin the +ydirection.Please ChooseB) E in the -y direction,\vec Bin the +x directionPlease ChooseC) E in the +z direction,\vec Bin the -x direction.Please ChooseD)\vec Ein the +y direction,\vec Bin the -z direction.Please Choose
A) The direction of propagation of the wave is in the +z direction. This is because the wave is transverse, and the electric and magnetic fields are perpendicular to each other and to the direction of wave propagation. Since E field is in the +x direction and B field is in the +y direction, the direction of propagation is in the +z direction.
B) The direction of propagation of the wave is in the -z direction. This is because the wave is transverse, and the electric and magnetic fields are perpendicular to each other and to the direction of wave propagation. Since E field is in the -y direction and B field is in the +x direction, the direction of propagation is in the -z direction.
C) The direction of propagation of the wave is in the +y direction. This is because the wave is transverse, and the electric and magnetic fields are perpendicular to each other and to the direction of wave propagation. Since E field is in the +z direction and B field is in -x direction, the direction of propagation is in the +y direction.
D) The direction of propagation of the wave is in the +x direction. This is because the wave is transverse, and the electric and magnetic fields are perpendicular to each other and to the direction of wave propagation. Since E field is in the +y direction and B field is in the -z direction, the direction of propagation is in the +x direction.
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8. A bullet (mass=m) is fired at speed v into a block of mass M (with M> m) which is hanging
vertically from a light string of length L. The bullet is embedded in the block. If the recoiling
block-bullet system reaches a height of 2/3L, then the initial speed of the bullet is most nearly
a
Mx (1gL/3)1/2/m
b Mx (2gL/3)¹/2/m
C. Mx (3gL/4)¹/2/m
d. Mx (4gL/3)¹/2/m
Answer: A bullet (mass=m) is fired at speed v into a block of mass M (with M> m) which is hanging vertically from a light string of length L. The bullet is embedded in the block. If the recoiling block-bullet system reaches a height of 2/3L, then the initial speed of the bullet is most nearly
B. Mx (2gL/3)¹/2/m
Explanation:
When a bullet (mass=m) is fired at speed v into a block of mass M (with M> m) which is hanging vertically from a light string of length L, the bullet is embedded in the block. The bullet and block form a new system with a total mass of M+m and the system moves upward due to the kinetic energy imparted by the bullet.
Conservation of energy principle states that the initial kinetic energy of the bullet is equal to the final potential energy of the bullet-block system. The potential energy of the system is given by mgh, where h is the height to which the system rises.
Therefore, the initial kinetic energy of the bullet is given by:
1/2mv² = mgh
We know that h = 2/3L and g is the acceleration due to gravity. We can substitute these values into the above equation and solve for the initial speed of the bullet
v² = 2gmh/m = 2gh/m = 2g(2/3L) / m = 4gL/3m
v = (2gL/3m)^1/2 * m
v = M * (2gL/3)^1/2 / m
Therefore the initial speed of the bullet is most nearly Mx (2gL/3)¹/2/m
Summary, when a bullet (mass=m) is fired at speed v into a block of mass M (with M> m) which is hanging vertically from a light string of length L, the bullet is embedded in the block and the block and bullet form a new system. The initial kinetic energy of the bullet is equal to the final potential energy of the bullet-block system. The potential energy is given by mgh, where h is the height to which the system rises, h = 2/3L. Solving the equation gives the initial speed of the bullet is most nearly Mx (2gL/3)¹/2/m.
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b) if the teacher wants to have the bungee stop his motion when he is 2 meters above the gym floor, how much energy will the bungee need to absorb?
The amount of energy will the bungee need to absorb for a motion is marked as 19.6xmass J potential energy.
Where does potential energy reach its peak?When the most energy is absorbed, potential energy is at its maximum. This might occur when something rises to the highest point in the air before dropping, when a roller coaster is about to plunge, or when a rubber band is stretched as far back as it can go before it breaks. After then, potential energy is changed into kinetic energy.
P.E. = mgh,
where m = mass - kilograms,
g = acceleration due to gravity = 9.8 m / s2
h = height = meters.
Potential energy = m x 9.8 x 2
=> 19.6xmass J
Why does potential energy fall off as height increases?Because kinetic energy gradually increases and potential energy gradually diminishes as a body descends from a height. Throughout this, all mechanical energy is kept in reserve.
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to cover a distance of 10 km, jacob runs some of the way at 15 km/h, and walks the rest of the way at 5 km/h. his total journey time is 1 hour. how far did jacob run?
According to the question, To cover a distance of 10 km, jacob runs some of the way at 15 km/h, and walks the rest of the way at 5 km/h. 7.5 km runnng, and .5 km walking is done by jacab.
What is Distance?Regardless of the starting or finishing positions of an object, duration can be characterized by the amount the space it has traveled.
Jacob ran for x hours; consequently, he walked for 1-x hours.
Time x speed = Distance.
15x+ 5*(1-x) =10,
15x+5–5x =10,
10x =5,
x= 0.5 hours.
Jacob therefore ran for thirty minutes and then walked for another thirty minutes.
Let's examine,
15 km/ hr x 0.5 hr
= 7.5 km runnng,
and 5 km/ hr x 0.5 hr
= 2.5 km walking.
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A car is moving on a straight road at 5m/s. it is accelerated at 3m/s. what will be its velocity after 4 seconds?
Answer:
17m/s
Explanation:
v=u+at
v=5+3*4
v=17m/s
Part C What is the value of the change in potential energy AU = U; Ui , of the alpha particle? Express your answcr in joules using thrcc significant figurcs_ View Available Hint(s) AU -1.1Ox10-21 J Sun Prevlous Answers Correct Correct answer shown: Your answer 11.04.10-2 1.104*10- was cither rounded dificrently or used different number significant figures than required for this part Important: If yOu use this answer in later parts use tne full unrounded value in your calculations
The value of the change in potential energy, AU, of the alpha particle is 1.104*10^-21 Joules. This value represents the energy gained or lost by the particle as it moves through a potential difference
The change in potential energy, AU, of the alpha particle is a measure of the energy gained or lost by the particle as it moves through a potential difference. It is calculated by subtracting the initial potential energy, Ui, from the final potential energy, U. The unit of potential energy is Joules. In this case, the change in potential energy of the alpha particle is given as 1.104*10^-21 Joules. This value represents the energy gained or lost by the particle as it moves through a potential difference. It is important to note that this value is given to three significant figures, and should be used with the same precision in any further calculations.
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DJ wants to install a zipline between two trees. The zipline will be strung between the trees at points 32 feet and 4 feet high. Suppose the trees are 52 feet apart. Which sketch models this situation to find the length of the zipline if the zipline is x feet
The zipline is 59.06 feet long; it would be x feet long if it were a different length. DJ wants to set up a zipline in the space between two trees.
How are lengths determined?Length can be measured in a variety of ways, including handspan, foot span, meters, inches, and millimeters. Standard units of measuring length and non-standard units of measuring length are the two categories into which the units of measuring length can be divided. Look at the table below that displays length units.
What length is there?A segment's or a room's dimensions are examples of things that can be measured in terms of length. Distance is the separation between two things, like two cities or two points.
Length=√a²+b²
Length=√28²+52²
Length=√784+2,704
Length=√3,488
Length=59.06ft
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find the volume of a cone with diameter 12 m and height 20 m. a. 40 pi m3 c. 240 pi m3 b. 120 pi m3 d. 720 pi m3
The cone has a 240π m³ capacity.
Describe Volume .
Volume in mathematics refers to how much three-dimensional space an object or closed surface takes up. The volume is expressed in cubic units such as m3, cm3, in3, etc. It is how much space a thing or material occupies.
Volume and capacity are two more names for the same thing.
Cone diameter is 12 meters, given.
radius = diameter/2 = 12/2 = 6 meters.
Cone height is 20 meters.
Cone volume is calculated using 1/3πr2h.
where h = height and r = radius
volume equals 1/3 x π (6)2 x 20.
volume equals 240 m³
As a result, the volume is 240 m³
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how much distance is between you and the deer when you come to a stop?
The distance between you and deer is 28.75 m, when you come to stop, if the speed of the car is 21 m/s, and reaction time is 0.5 second.
Initial distance between the car and the deer, d = 38 m
Let the initial speed, u = 21 m/s
Reaction time, t = 0.5 sec
Maximum deceleration of the car, a = 10 m/s²
By the second equation of motion,
S = ut + 0.5at²
S = 21 × 0.5 + 0.5 × (-10) × 0.5²
S = 9.25 m
So the distance between the deer and you = 38 - 9.25 = 28.75 m.
--The given question is incomplete, the complete question is "If you are driving in a car at 21 m/s and suddenly a deer appears in front of you at a distance of 38 meter. If your reaction time is 0.5 sec and maximum deceleration of the car is 10 m/s² then what will be the distance between you and deer when you stop the car?"
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Oil with a density of 842kg/m3842kg/m3 is flowing smoothly through a pipe, as shown. In the lower portion, the oil is flowing at v1=2.04m/sv1=2.04m/s, and the pressure gauge indicates P1=232kPaP1=232kPa. In the upper portion of the pipe, oil is flowing at v2=3.26m/sv2=3.26m/s at a height that is 12.28m12.28m above the lower portion.
What is the pressure reading, in kilopascals, on the gauge on the upper portion of the pipe?
The pressure reading on the upper portion of the pipe can be determined by using Bernoulli's equation. Bernoulli's equation relates the pressure, velocity, and height of a fluid in a steady state and incompressible flow.
The Bernoulli's equation states that:
P1 + 1/2ρv1^2 + ρgh1 = P2 + 1/2ρv2^2 + ρgh2
Where:
P1 = pressure at point 1 (232 kPa)
v1 = velocity at point 1 (2.04 m/s)
h1 = height at point 1 (0 m)
P2 = pressure at point 2 (unknown)
v2 = velocity at point 2 (3.26 m/s)
h2 = height at point 2 (12.28 m)
ρ = density of the fluid (842 kg/m3)
g = acceleration due to gravity (9.81 m/s^2)
We can plug in the given values and solve for P2:
P2 = P1 + 1/2ρv1^2 + ρgh1 - 1/2ρv2^2 - ρgh2
P2 = 232 + 1/28422.04^2 + 8429.810 - 1/28423.26^2 - 8429.8112.28
P2 = 232 + 8424.16 + 0 - 84210.66 - 10,205.9
P2 = -9,973.7 Pa
Therefore, the pressure reading on the upper portion of the pipe is -9,973.7 Pa which is approximately -99.74 kPa.
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a 24.3 kg mass and a 45.8 kg mass are separated by a center-to-center distance of 4.6 m. measuring from the center of the 24.3 kg mass, determine the center of mass of the system.
Determine the center of mass of the system is 3.0 kg.
What is mass ?
A body's mass serves as a proxy for its volume of matter. The mass unit established by SI is the kilogramme (kg). A body's mass never varies, it should be mentioned. only under unusual, exceptional circumstances where a considerable amount of energy is provided to or taken away from a body.
What is kilogram ?
The SI's (International System of Units) unit of mass, the kilogramme (sometimes spelled kilogramme), has the unit symbol kg. In addition to being a measurement unit widely utilised in research, engineering, and commerce globally, the word "kilo" is commonly employed in everyday speech. "One thousand grammes" is meant by it.
a. Mass of the bear cub, m1 = 40 kg
Mass of the log, m2 = 600 kg
The speed with which the bear leaps, v1 = 4 m/s
Let v2 be the speed of the log.
Using law of conservation of momentum, m1v1 = m2v2
40 x 4 = 600 x v2
Speed of the log, v2 = 0.27 m/s
0.27 m/s
b. A cannonball explodes in mid-air into several fragments. According to law of conservation of momentum, total momentum of all the fragments is equal to the momentum of the cannonball just before explosion.
c. Mass, m1 = 24.3 kg
Mass, m2 = 45.8 kg
Center to center distance, r2 = 4.6 m
Distance of the center of mass from the center of 24.3 kg is R = m1r1+m2r2m1+m2
R = 24.3 x 0+45.8 x 4.624.3+45.8
= 3.0 m
d. Using Newton’s 2nd law of motion, force F = m(v- u)t
Ft = m(v-u)
But, Ft is the momentum, and m(v-u) is the change in momentum.
Hence, the impulse is equal to a change in momentum.
Impulse is: I
Therefore, determine the center of mass of the system is 3.0 kg.
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on a far away planet, a 500 hz tuning fork is held over the open top of a glass pipe held vertically. the pipe is filled to the top with water then slowly drained until the air column inside it is in resonance with the vibrations of the tuning fork. when this first occurs the air column is 150 mm long. what is the speed of sound in the (closed) pipe?
The speed of sound in the pipe is 150m/s and that found to be enhanced when air column is 150 mm long.
What does "tuning fork" mean?
a two-pronged metal tool used for tuning musical instruments and determining standard pitch that produces a set tone when struck.
ΔL = 150mm => 0.15m = λ/2
=> λ = 2 x 0.15 => 0.3 m
The velocity of sound => frequency x wavelength
500hz x 0.3 m => 150m/s
Which tuning fork's frequency is higher?The length of a tuning fork's prongs determines the pitch it produces. Each fork has a stamp that says the note it makes (for example, A) and the frequency in Hertz (e.g. 440 Hz). Higher pitch (frequency) noises are produced by shorter prongs than by longer prongs.
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A capacitance C and an inductance L are operated at the same angular frequency. A) At what angular frequency will they have the same reactance? Express your answer in terms of the variables C and L B)If L = 5.30 mH and C = 3.90 μF , what is the numerical value of the angular frequency in part A? C) What is the reactance of each element?
A) The angular frequency at which they will have the same reactance is equal to 1/√(LC).B) The numerical value of the angular frequency in part A is 8.51 x 10^6 rad/s.C) The reactance of each element is equal to 1/√(LC), which is equal to 5.91 kΩ.
What is the numerical ?
Numerical refers to a quantity that is expressed or represented by a number. It is a numerical value that can be used in mathematical equations and calculations. Numerical can also refer to a type of data that consists of numbers or numerical values, such as dates, times, measurements, or financial data.Numerical is a term used to describe data that is expressed in numerical form, such as numbers or numerical values. This type of data is used to make calculations and accuracy is important in order to make reliable predictions and decisions.
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a 1500-kg car moving at 9.6 m/s suddenly collides with a stationary car of mass 1700 kg. if the two vehicles lock together, what is their combined velocity immediately after the collision?
The combined velocity immediately after the collision is 0 m/s. When two objects collide and lock together, the momentum of the two objects is conserved, meaning the final velocity is equal to 0 m/s.
What is the momentum ?
Momentum is a physics concept that describes the motion of an object in terms of its mass and velocity. It is a measure of an object's inertia, or its resistance to changes in its motion. Momentum is a vector quantity, meaning it has both a magnitude (or size) and a direction. The magnitude of an object's momentum is equal to its mass multiplied by its velocity. Momentum is conserved, meaning it can neither be created nor destroyed, only transferred from one object to another. This property is important in many aspects of physics, including collisions, explosions, and the motion of planets. Momentum is also related to force, as a force applied to an object causes its momentum to change.
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if a skater who is spinning pulls her arms in so as to reduce her rotational inertia by half, by how much will her angular momentum change? by how much will her rate of spin change? group of answer choices her angular momentum is doubled. her spin rate is doubled. her angular momentum is cut in half. her spin rate does not change. her angular momentum is cut in half. her spin rate is cut in half. her angular momentum does not change. her spin rate doubles.
In light of the aforementioned equations, the rate of spin will double if the skater's rotational inertia is cut in half while spinning.
What does rotational inertia actually mean?Rotational inertia is a property of any rotating object. It is a scalar value that describes how difficult it is to change the rotational velocity of an object around a certain rotational axis. Similar to rotational inertia in rotational mechanics, mass plays a similar role in linear mechanics.
Rotational inertia is determined by what?Both an object's mass and its distribution of mass in relation to its axis of rotation play a role in rotational inertia. The shape of an object dictates its rotational inertia, unlike other circumstances in physics where we can make things simpler by imagining we have a point mass.
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