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Get Full Access to Physics For Scientists & Engineers With Modern Physics - 4 Edition - Chapter 4 - Problem 4.85
Get Full Access to Physics For Scientists & Engineers With Modern Physics - 4 Edition - Chapter 4 - Problem 4.85

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# A 450-kg piano is being unloaded from a truck by rolling

ISBN: 9780131495081 132

## Solution for problem 4.85 Chapter 4

Physics for Scientists & Engineers with Modern Physics | 4th Edition

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Problem 4.85

A 450-kg piano is being unloaded from a truck by rolling itdown a ramp inclined at 22. There is negligible friction andthe ramp is 11.5 m long. Two workers slow the rate at whichthe piano moves by pushing with a combined force of1420 N parallel to the ramp. If the piano starts from rest,how fast is it moving at the bottom?

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Modern Physics Lecture 1: Foundations and Special Relativity Position, Time, and Rotation are all continuous symmetries (discrete symmetries such as reflection do not produce the same results as below):  Invariance in position (changing where in space you perform your experiment) proves momentum conservation  Invariance in rotation (eg. rotating your entire experiment by 90 degrees) proves conservation of angular momentum  Invariance in time (changing when in time you perform your experiment, eg. today vs. tomorrow) proves energy conservation Newtonian Mechanics:  Inertia  F=ma  The force of object 1 on object 2 is equal in magnitude to the force of object 2 on object 1  True in an inertial reference frame

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##### ISBN: 9780131495081

Since the solution to 4.85 from 4 chapter was answered, more than 482 students have viewed the full step-by-step answer. The answer to “A 450-kg piano is being unloaded from a truck by rolling itdown a ramp inclined at 22. There is negligible friction andthe ramp is 11.5 m long. Two workers slow the rate at whichthe piano moves by pushing with a combined force of1420 N parallel to the ramp. If the piano starts from rest,how fast is it moving at the bottom?” is broken down into a number of easy to follow steps, and 61 words. Physics for Scientists & Engineers with Modern Physics was written by and is associated to the ISBN: 9780131495081. This textbook survival guide was created for the textbook: Physics for Scientists & Engineers with Modern Physics, edition: 4. The full step-by-step solution to problem: 4.85 from chapter: 4 was answered by , our top Physics solution expert on 11/10/17, 05:57PM. This full solution covers the following key subjects: piano, ramp, parallel, down, fast. This expansive textbook survival guide covers 44 chapters, and 3904 solutions.

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