Your humble physics Professor elevates a ball hanging from a string away from it's lowest position and holds it there. It requires 105 J of Energy to do this. How much work is required to elevate the ball? Not enough information to answer this question 50J 105 J O 100 J
Q: 09: A person trying to lose weight by burning fat lifts a mass of 10 kg up to a height of 1 m 1000…
A: Given : Lifting mass = 10 kg Height = 1m Number of times = 1000 Energy supplied by fat per kg…
Q: Consider a situation where you carry a 20-N box up a flight of stairs, raising its elevation by 5 m.…
A: Write the given values with the suitable variables. W=20 Nh=5 m Here, W is the weight of the box and…
Q: ) A car has a mass of 1000 Kg and moves at a speed of 15 m/s. a) Does the car have kinetic energy?…
A: Answer:- Given Mass of a car = 1000 kg (a) Initial speed (u) = 15 m/s Initial Kinetic energy of…
Q: 20. A 0.58 kg box is pulled with 70 N of force at an angle of 150 above the horizontal across a flat…
A: Given: m = 0.58 kg, F = 70 N, θ = 15°, s = 17 m
Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…
A: Potential energy is defined as U=mgh Here m is mass, h is height and g is gravitational acceleration…
Q: A block of mass m = 1 kg is sliding on a horizontal surface with initial velocity vo = 2 m/s. The…
A: Solution: Given: m = mass of block = 1 kg v0 = speed of block = 2ms s = distance in which block is…
Q: Q12: A time-dependent force F = 6t acts on a particle of mass 1 kg. If the particle starts from…
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Q: A 51.0 kg crate rests on a shelf 0.75 m above the floor in a warehouse. A forklift is used to raise…
A: Mass of crate = 51 kg Height of shelf = 0.75 m Height of shelf where the crate needs to be put =…
Q: While pushing her younger brother on a swing, Ivy exerted an average force of 56 N through a…
A: Given Data : The average force exerted by Ivy is given as F = 56 N. The distance covered by ivy…
Q: Captain America applies a force of 100 N [fwd] to his shield to move it across a 10 m surface. The…
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Q: During the pitching motion, Clayton Kershaw exerted an average horizontal force of 60 N against the…
A: The horizontal force applied to baseball F = 60 N Mass of baseball…
Q: How much work does gravity do on the elevator? How much work does the tension in the elevator cable…
A: Given that, mass of the elevator and upward acceleration of the elevator and distance. Then We have…
Q: A bag of wheat weight 100 kg. To what height should it be raised so that potential energy is 120 J?…
A: Given: The mass of the object is 100 kg. The potential energy of the object is 120 J. The…
Q: As a woman carries her suitcase up a flight of stairs, she does work against gravity. If the mass of…
A: mass of suitcase (m) = 10 kg Height of stairs (h) = 12 m g = 9.8 ms2
Q: y-4 m/s h2.18m An 84 kg snowboarder is coming down the hill and takes off from a jump. At one point…
A: mass of snowboarder is m = 84 kg The snowboarder is at a height of 2.18 m above the ground.…
Q: Suppose you lift a 20 kg box by a height of 1.0 m. a) How much work do you do in lifting the box?…
A: Part-a Given: The height upto which the box is lifted h = 1 m. The mass of the box m = 20 kg.
Q: Three objects with masses m₁ = 6.2 kg, m₂ = 14 kg, and m3 20 kg, respectively, are attached by…
A:
Q: If we know that a force of 5 N is applied on an object while the object moves 2 m, can we determine…
A: Given : F = 5 N d = 2 m
Q: In pulling two identical carry-on bags through the airport, Mr. Beall and his 7 year o son, James,…
A: James uses a greater force because he is shorter, making a smaller angle with the ground
Q: In a basketball game, lebron made a dunk. At the time he was hanging on to the rim, the rim was…
A: Write the given values with the suitable variables. x=15 cm=0.15 mh=1.5 mm=110 kk=7 kN/m=7000 N/m…
Q: A 1400 kg car accelerates from 5 m/s to 10 m/s. The net work done by the car is V2 500 J 200 J 300…
A: Given, Mass of car m = 1400 Kg Initial velocity of the car u = 5 m/s Finial velocity of the car v =…
Q: How much work is done by a person lifting a 7.0-kg object from the bottom of a well at a constant…
A: Given Weight or Force = 7.0kg Speed = 4 m/s Time = 1.5s
Q: An 80 kg man walks up a 5 m high stairs. The increase in gravitational potential energy of the…
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Q: What is the potential energy of an acorn falling out of a tree 20 meters above the ground that has a…
A: Given value--- height = 20 m. weight of acorn = 23.7 N. We have to find--- potential energy?
Q: A body of mass m slides a distance d down alom uch work is done by gravity?
A: We know that the let the mass of the body is m and it slide a distance d in the downward direction…
Q: Your friend is pushing a crate. The crate is so heavy of 120 kg of mass that it is moving very…
A: Mass of crate, m=120kg Initial speed of crate, u=2m/s Final speed of crate, v=5m/s Let the work done…
Q: The net work exerted on a box filled with fresh berry during its motion from a point O to a point A…
A: Net work exerted or work done, w= 100 J Combined mass of box and fruits, m=10 kg Initial speed of…
Q: What is the potential energy in J of a bungee jumper standing on a 0.109 km bridge that weighs 85…
A:
Q: A bowler tosses a ball without spin. The ball slides down the alley. At some point, friction with…
A:
Q: A heavy duty table can handle a maximum force of 5000 N. What is the maximum number of 75-kg boxes…
A: Maximum force a duty table can handle Fmax = 5000 N Mass of one box m = 75 kg Weight of one box…
Q: A 5 kg ball is shot straight up with an initial speed of 20 m/s . When the ball reaches height 10 m,…
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Q: While pushing her younger brother on a swing, Ivy exerted an average force of 446 N through a…
A:
Q: A 40 N object has 80 joules of potential energy. The object is at a height of 0.5 meters. True or…
A: Given data: Weight (mg) = 40 N Potential energy = 80 J Height (h) = 0.5 m
Q: The two ropes seen in the image are used to lower a 255 kg piano exactly 5 m from a second-story…
A: Given: The displacement of the piano is 5 m. The weight of the piano is 2500 N. The magnitude of T1…
Q: Karen lifts a 10.0 kg box up from the ground to a height of 1.50 meters. He then lowers the box to…
A: Mass of the box m = 10.0 kg Initial height hi = 1.50 m Final height hf = 0.630 m
Q: Two people are at the gym having a debate about how much energy is required to bench press a certain…
A: Answer It doesn't matter how fast you lift.
Q: Find the magnitude of the net torque (in N.m) on the wheel shown in the Figure about the axle…
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Q: A 70 kg person climbs a 2.0 m high flight of stairs within 8 seconds when he walks and 2 seconds…
A: Given data: Mass (m) = 70 kg Height (h) = 2.0 m Time taken in walks = 8 seconds Time taken in runs…
Q: An object is acted on by the force shown in the figure(Figure 1). What is the final position of the…
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Q: A 0.300-kg football is thrown through the air. At a height of 1.71 m above the surface of Earth, it…
A:
Q: A 5.0-kg box is moving horizontally at 6.0 m/s. In order to change its speed to 10.0 m/s, the net…
A:
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