In a step down transformer, the secondary voltage is the primary voltage. Part A O none of these O greater than O equal to O less than

Q: How much work is required to lift a 9.5-kg backpack 1.4 m to put it on?

A: Dear student The work is defined as : W = Force × Displacement in the direction of force

Q: Write the kinetic, potential, and total energy of a baseball having a mass of 0.145 kg held 10…

A: Given mass M = 0.145 kgheight h = 10 m

Q: If an object's speed is increased to 6 times its original speed, the object's kinetic energy will…

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Q: What is the kinetic energy of a car that is traveling at 18.6 m/s if it has a mass of 1,240 kg?…

A: Given Mass of car m = 1240 kg speed of car v = 18.6 m/s

Q: A 75 kg man pushes off from the 86kg block on ice and slides away at a speed of 4 m/s What is the…

A: Conservation of momentum: AS per the conservation of momentum in an isolated system the total…

Q: Which of the following is the SI unit for gravitational potential energy? Newton Kilogram Joule…

A: Gravitational potential energy is the energy possessed by an object due to its position .

Q: What is the mass of an object if it fell from rest 200 m above the ground and had 75 J of stored…

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Q: Find the mass of a car that drives at 16 m/s and has 18000 J of energy .

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Q: How much work is required to lift a 6.9-kg backpack 1.9 m to put it on?

A: mass(m)=6.9 kg displacement(d)=1.9 m g =acceleration due to gravity=9.80 m/s2

Q: baseBall A has a mass of 50 kg and is raised to a height of 5 m. baseBall B has a mass of 100 kg and…

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Q: An object has kinetic energy of 74J. If its speed is 5.2 m/s, waht is its mass? Gravity is 9.8ms and…

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Q: Show that 2.4 J of work is done when a force of 2.0 N moves a book 1.2 m.

A: Work done = Force x Distance moved by the force = Fd W = 2.0 N x 1.2 m W = 2.4 N.m = 2.4 J

Q: A Honda Civic does 778,825 joules of work to accelerate from 0 to 60 mph in 5.8 seconds. How much…

A: Power: Work done per unit time is called power.  It's unit is J/s  or watt(W)

Q: How much work would you do if you climbed 8 meter up a tree, if your weight is 57 kilograms?

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Q: A person pushes a stopped car of mass 400 kg with a force of 200 N until the car its velocity is 5…

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Q: Which of the following quantities represent mass? 12.0 lb 0.34 g 120 kg 1600 kilanewtons (kN)…

A: Given 12.0 lb 0.34 g 120 kg 1600 kilanewtons (kN) 0.34 m 411 cm

Q: Find the mass of a car that drives at 12 m/s and has 20000 J of energy.

A: Given data :                 Velocity     =    V         Kinetic energy    =   K•E           To find…

Q: ben  lifts a 1000 N bar 1.5 m in 1.0 s, while ken lifts a 1300 N bar 2.0 m in 2.5 s. Whose lift was…

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Q: rem states that the change in the kinetic energy of an object is equal to what What is called to an…

A: We know the work-energy theorem, According to this theorem. The work done [W] on an object is equal…

Q: Which of the following is the SI unit for gravitational kinetic energy? Joule is wrong

A: It does not matter which type of energy it is, energy means it will have the same unit.

Q: A 2,263 kg car accelerates from rest to a velocity of 20 m/s in 13 seconds. The powwer of the engine…

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Q: A person has accommodation power 10 diopter and far point infinity his near point 0.1 m 0.2 m 110 m…

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Q: What is the potential energy stored in a box if it has a mass of 224 kg and is stored on a shelf 7 m…

A: Given: Mass (m) = 224 Kg  Gravity (g) = 9.80 m/s2  Height (h) = 7 m

Q: how high is a 0.1-kilogram bird from the ground when it’s potential energy is 3 joules 5m 6.2m 2.5m…

A: Given: Mass m = 0.1 kg or 100 g Potential energy = 3 J To determine: Height h Formula used: P = mgh,…

Q: Find the mass of a car that drives at 22 m/s and has 14500 J of energy.

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Q: How much work is done when moving a box 25 m with a net force of 30 N?

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Q: How much power is required to lift a 3061 g chair at a height of 0.20 m in 2 s?

A: Mass of chair = 3061 gm = 3.061 kg. Weight = 3.061 ×9.8 = 30 N Workdone to lift the chair to 0.2 m…

Q: Find the mass of a car that drives at 15 m/s and has 2460 J of energy.

A: Introduction :  In this question we are provided with value of kinetic energy and velocity. With…

Q: How much work is required to throw a ball with a mass of 0.44 Kg 23.4 m/s?

A: Here in this question we consider the ball initially is in rest.                 i.e. vi = 0 m/s.…

Q: Find the mass of a car that drives at 12.5 m/s and has 3000 J of energy.

A: Given data :                  Kinetic energy     =    K•E                    Velocity     =     V…

Q: What momentum does a car of mass 1,490 kg have if it's traveling at 8.6 m/s? Submit your answer in…

A: Given that,The mass of the car : m = 1490 kg  The velocity of the car : v = 8.6 m/sec  Here we need…

Q: ow much power (in kW) is required to raise an elevator with a mass of 1,722 kg at a rate of 54…

A: Given values:- Mass of the elevator,(m)=1722 kg -----(1) Rate,(v)=54 m/min=0.9 m/sec ------(2)…

Q: Which of the following is the Sl unit for gravitational electric power? Work Watt None of the…

A: Joule

Q: Find the mass of a car that drives at 20 m/s and has 12500 J of energy.

A: Introduction :  In this question we are provided it value of velocity and kinetic energy . With…

Q: Find the mass of a car that drives at 20 m/s and has 12500 J of energy.

A: