Part A A ball is dropped from a height of 100.0 cm. After its first bounce it rises to a height of 68.3 cm. How many bounces it will take for the kinetic energy of the ball to drop below 5% of its initial kinetic energy? possibly useful: K/K, = h,H = B" 8 Previous Answern Correct Part B How many bounces it will take for the ball to lose more than 85% of its initial kinetic energy. Previous Answers v Correct Part C How many bounces it will take for h, (the height the ball bounces to) to drop below 8 cm. 7.

Part A A ball is dropped from a height of 100.0 cm. After its first bounce it rises to a height of 68.3 cm. How many bounces it will take for the kinetic energy of the ball to drop below 5% of its initial kinetic energy? possibly useful: K/K, = h,H = B" 8 Previous Answern Correct Part B How many bounces it will take for the ball to lose more than 85% of its initial kinetic energy. Previous Answers v Correct Part C How many bounces it will take for h, (the height the ball bounces to) to drop below 8 cm. 7.

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)...

See similar textbooks

Similar questions

Part III: Open Response Springs and ropes are ideal. g=10m/s U(x) (joules) 2 1 3 4 5 6. 7 x (meters) The above graph shows the potential energy U(x) of a 0.1 kg object as a function of its position x. Suppose the object has a constant total energy of 4.0 joules, as shown by the dashed line on the graph. 7. (a) Label all points of stable equilibrium and unstable equilibrium on the graph. (b) What happens to the speed of the object as it moves from 2m to 4m? (c) Can the object reach the position x = 0.5 m? Explain. (d) What is the velocity and the acceleration of the object at x = 6.0 m?
A 23.3-kg child descends a slide 3.4 m high and reaches the bottom with a speed of 1.9 m/s. Part A How much thermal energy due to friction was generated in this process? Express your answer using two significant figures.
Part A With what minimum speed must you toss a 180 g ball straight up to just touch the 13-m-high roof of the gymnasium if you release the ball 1.2 m above the ground? Solve this problem using energy. Express your answer with the appropriate units. HA Umin = Value Units Submit Request Answer Part B With what speed does the ball hit the ground? Express your answer with the appropriate units. μΑ Value Units
Part A A 45 kg softball player slides into second base, generating 350 J of thermal energy in her legs and the ground. How fast was she running? Express your answer with the appropriate units. HẢ Value Units Submit Request Answer Provide Feedback
Superman can throw a ball (mass 145 g) 1000 m/s. Suppose Supermanthrows a ball straight up into the air at 1000 m/s. i. What is the initial kinetic energy of the ball? ii. How high would the ball go if the force ofgravity is constant F = −mg? (use conservation of energy and neglect air resistance). iii. How high would the ball go if you use F = − (GMEm/ r2) ? ME = 5.97 × 1024 kg, and assume the ball is thrown from rE = 6.37 × 106 m
A 20.0-kg child descends a slide 1.80 m high and reaches the bottom with a speed of 1.25 m/s . Part A How much thermal energy due to friction was generated in this process? Express your answer to three significant figures and include the appropriate units.
A 45 g bug is hovering in the air. A gust of wind exerts a force F = (4.0î - 6.0ĵ) × 10-² N on the bug. Part A How much work is done by the wind as the bug undergoes displacement A7 = (7.02- 7.03) m? Express your answer with the appropriate units. W = Submit Part B V= HÅ Value Submit X Incorrect; Try Again; 9 attempts remaining Provide Feedback Value Units Previous Answers Request Answer What is the bug's speed at the end of this displacement? Assume that the speed is due entirely to the wind. Express your answer with the appropriate units. μA Request Answer P Units input for part A ? Units P ?
Part A A 1680 kg car skids on a level road with coefficient of kinetic friction 0.64 between the tires of the car and the road. The car skids a distance of 102 m and comes to a complete stop. The work done on the car by the force of kinetic friction is (enter your answer with two significant figures) possibly useful: W = (Fcose)d w = mg 9 = 9.81 m/s? VAZ中 ? J Submit Request Answer Part B The amount of thermal energy generated while the car was skidding is (enter your answer with two significant figures) AL中 ? J Submit Request Answer
e You are logged in as Gavin Ritcheson A football weighing 5 N is dropped from a height of 7.6 m above the ground. What is the kinetic energy of the ball just as it hits the ground? Answer: Next page C US 0 11 28
A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving up at a steady speed of 5.0 m/s for 8.0 m. Use g = 10 m/s2. Match the answers with questions. the final kinetic energy of the box (Kf) the change in kinetic energy of the box (ΔK) A. 320 J B. 20 J C. -320 J D. -20 J E. 50 J F. -50 J G. 0 J
PRINTER VERSION 1 BACK NEXT Chapter 08, Problem 045 A rope is used to pull a 5.52 kg block at constant speed 4.57 m along a horizontal floor. The force on the block from the rope is 7.54 N and directed 31.6° above the horizontal. What are (a) the work done by the rope's force, (b) the increase in thermal energy of the block-floor system, and (c) the coefficient of kinetic friction between the block and floor? (a) Number Units (b) Number Units (c) Number Units LINK TO TEXT LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM Question Attempts: 0 of 5 used SAVE FOR LATER SUBMIT ANSWER