1. Conservation of Energy of a Freefalling Object. A ball is initially suspended above the ground at position A. The ball is released, it freefalls from position A to position F. At position F, the ball impacts the ground. Answer the questions about the conversion of GPE to KE as the ball freefalls to the grousd. Air resistance is absent. Choose the best answer that describes the energy relationship of the falling ball. 1. At Position A A. TOT E 100% GPE+0KE B. TOT E 0 GPE+ 100 % KE C. TOT E 50% GPE + 50% KE D. GPE> KE E. GPE KE E. GPEKE E. GPE

1. Conservation of Energy of a Freefalling Object. A ball is initially suspended above the ground at position A. The ball is released, it freefalls from position A to position F. At position F, the ball impacts the ground. Answer the questions about the conversion of GPE to KE as the ball freefalls to the grousd. Air resistance is absent. Choose the best answer that describes the energy relationship of the falling ball. 1. At Position A A. TOT E 100% GPE+0KE B. TOT E 0 GPE+ 100 % KE C. TOT E 50% GPE + 50% KE D. GPE> KE E. GPE KE E. GPEKE E. GPE

Name: The New Yorker FlC.CommonLit | MY A.• Total Energy-Gravitational Pote
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Description: The New Yorker FlC.CommonLit | MY A.• Total Energy-Gravitational Potential Energy+ Kinetic Energy-100%• The percentage of GPE and KE can change as object moves down or up, but thetotal energy remains constant.• Assume no friction (loss of energy by

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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2. The given figure shows an Atwood machine with two blocks that weigh 10.0 kg and 5.0 kg. These blocks are connected by a massless string that goes along a frictionless and massless pulley. Suppose a spring has a force constant of 1 500 N/m on a pit as shown in the figure. a. Using the law of conservation of energy, find the speed of the 10-kg block when it reaches the end of the spring if the system will be released from rest. b. What will be the maximum compression length of the spring when the heavier block hits it? 5.0 kg 10.0 kg
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4. Two identical masses are suspended by strings wrapped around identical frictionless pulleys, except that a heavy metal ring has been added to one of the pulleys. The masses are released from rest and allowed to fall to the ground. How does the final kinetic energy of the falling mass compare between the two systems? Clearly explain your line of reasoning using physics concepts and equations. m m
2. The potential energy function associated with a force acting on a system is U = 3x3 – 5x. a) What is the equation for force for this system? b) Draw a graph of the potential energy. Indicate the points of equilibrium and note whether they are stable, unstable or neutral.
ACTIVITY 1 Problem Solving Power Rating Power is the rate of doing work. Power depends on the amount of work done in a specific time. It is measure in joules/second or watts which is the SI unit. Horsepower often used in measuring power of machines but is not an SI unit. One horsepower is equivalent to 750 watts. Read, analyze, and solve the following problems using the GUFSA template. Show your complete solution. Round off your final answer to the nearest hundredths. 1. A piano mover pushes a piano with a force of 200 N, moving it 12 m in 15 s. With how much power does the piano mover need to push?
A 500 kg cart rests atop a hill 30.0 m high on a roller coaster. Its gravitational potential energy is measured relative to the bottom of the hill. The cart then rolls down the hill. Which of these best describes what is happening in this situation? a. the total mechanical energy of the cart is decreasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is increasing b. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is increasing c. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is decreasing d. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is decreasing, and the gravitational potential energy of the cart is increasing e. the total mechanical energy of…
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3. An 80.0 kg student running at 3.5 m/s JUMPS up 2m into the air and grabs a rope that is hanging vertically up 2m from the ground. (ignore his height and assume his center of gravity is where he is holding the rope). How high from the ground will the student swing? SOLVE USING ENERGY PLEASE! Assume no air resistance. 2.0 m
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