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Author Question: A rocket accelerates due to the force exerted on it by the a. fuel. b. oxidizer. c. exhaust ... (Read 40 times)

Mr.Thesaxman

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  • Posts: 514
on: Jul 28, 2018
A rocket accelerates due to the force exerted on it by the
 
  a. fuel.
  b. oxidizer.
  c. exhaust gases.
  d. nozzle.
  e. booster.

Question 2

An 80 kg person walks up a flight of 3 m high stairs, then down the same flight of stairs to the person's original position. What is the change in the person's gravitational potential energy?
 
  a. 0 J
  b. 240 J
  c. 480 J
  d. 2352 J
  e. 4704 J


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dyrone

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


Mr.Thesaxman

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  • Posts: 514
Reply 2 on: Jul 28, 2018
:D TYSM

Joy Chen

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Reply 3 on: Yesterday
Excellent

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