For each pair, which has higher kinetic energy?(a) A sled resting at the top of a hill or a sled sliding down the hill(b) Water above a dam or water falling over the dam

Q: An 80-kg baseball player hits a baseball doing 117 J of work over a distance of 0.59 m. How much…

A: Answer 198.3N

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A: The answer is below

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A:

Q: A different car accelerated from 0.12 m/s to 0.52 m/s. The acceleration of the car was 0.040 m/s2.…

A: Given: The initial velocity of the car is 0.12 m/s. The final velocity of the car is 0.52 m/s. The…

Q: Each of the boxes shown below is pulled for 15 m across a level, frictionless floor by the force…

A: According to the work energy theorem, the work done is equal to the change in kinetic energy.  Work…

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A: Initial kinetic energy = 4.7 Joules acceleration due to gravity = 10 m/s2 mass of tennis ball = 0.05…

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A: Work done = Force × displacement

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Q: A ball drops some distance and gains 30 J of kinetic energy. Do NOT ignore air resistance. How much…

A: Given that a ball drops some distance and gains 30 J of kinetic energy   To determine gravitational…

Q: The electric motor of a model train accelerates the train from rest to 0.502 m/s in 20.0 ms. The…

A: mass of model train (m) = 825 g  = 0.825 kg initial velocity (u) = 0 msfinal velocity (v) = 0.502…

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A: Given- Mass m1 =1500 kg Mass m2 =3000 kg

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A: Given data: The mass is m=5kg The height is h=5 m Calculating the potential energy as follows:…

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A: Solution: as given that the different position of the car

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A:

Q: Identify the following as examples of potential or kinetic energy: a. Boxing b. A glass of milk…

A: a) Boxing - coversion of muscular energy to kinetic energy b) a glass of milk- if the glass of milk…

Q: Apply the work equation to determine the amount of work done by the applied force   A 100 N force…

A: Given Applied force is F=100 N Distance travelled is d=5 m Angle between the force and the distance…

Q: A trampoline is an example of potential energy and another example would be a A) kinetic; windmill…

A: In this problem, it is asking about type of energy changes in a trampoline. It is also asking for…

Q: A platform diver weighs 500 N. She steps off a diving board that is elevated to a height of 10…

A: Given:  Weight, mg = 500 N  height, h = 10 m  g = 10 m/s2

Q: 3) If a force on an object is aimed perpendicular to the direction of the object’s velocity, the…

A: Work : It is the product of the force applied on the object in the direction of the displacement and…

Q: Luke Autbeloe stands on the edge of a roof throws a ball downward. It strikes the ground with 100 J…

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Q: A girl with a 40 kg mass is riding an 8 kg bike. At the top of the hill her speed is 6 m/s and her…

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Q: kinetic energy did the ball gain

A:

Q: A block is pushed across a 10 m rough surface quickly by a boy. Which of the following would not…

A: A block is pushed along a 10 m rough surface very quickly by a boy  Power = WD / time = M×a×x/t  In…

Q: For a coin that is dropped at the top of the building, compare the potential energy at the bottom…

A: Under ideal circumstances (no air resistance), the potential energy at the bottom and the kinetic…

Q: For a coin that is dropped at the top of the building, compare the potential energy at the bottom…

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Q: A soccer ball is rolled down a ramp. The ramp has an angle of inclination of 5.2 degrees. The mass…

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Q: Which of the following would be a result of positive work being done on a moving car? * The…

A: Let the mass of car = m Let the speed of moving car = v

Q: Give an example of a situation in the real world where kinetic energy would need to be calculated…

A: Task is to give an example of a situation in real world where kinetic energy would need to be…

Q: A dog sled team pulls a sled (total mass 94.0 kg) across a snowy field (2.11 km wide; uk = 0.025) at…

A: Given data: Total mass (m) = 94 kg Total wideness (d) = 2.11 km                               = 2110…

Q: A crane pulls a 700 kg box at a constant velocity straight up for a distance of 50 m. Calculate the…

A:

Q: Which of the following is an example of potential energy? A child riding a bicycle O A bird flying A…

A: Potential energy is the energy stored in the body due to its height or because of its position…

Q: Car mass= 800kg. Initial speed 8 mls. 12 seconds the car has moved and has 120m a speed After the…

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Q: A painter drops a 1.5kg can o paint from a height of 9m . Determine (i) The kinetic energy of the…

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Q: Which of the following would NOT be an example of Kinetic Energy? O A charged battery A moving car…

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Q: A car with a mass of 1,500 kg is going straight ahead at a speed of 60 m/s. The brakes can supply a…

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Q: 3. A backhoe pushes a rubbish pile with a force of 1200 N for a distance of 400 meters. It takes the…

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Q: Two masses, m1 and m2, are attached by a massless string over a massless pulley. The coefficient of…

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Q: A 45 kg object is lifted 2.1 m from the floor to a table. What is the object's gravitational…

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Q: Calculate the kinetic energy in Joule, of a car of mass 1300kg travelling at 45km/h

A: Given, Mass of the car m = 1300 Kg Velocity v = 45 Km/h = 12.5 m/s