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Author Question: An object is thrown vertically and accelerates downward at +9.80 m/s2 (downward is positive and ... (Read 96 times)

Charlie

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on: Jul 27, 2018
An object is thrown vertically and accelerates downward at +9.80 m/s2 (downward is positive and upward is negative).
 
  (a) What is its displacement after 5.00 s if it starts at 2.50 m/s?
  (b) How fast is it moving after that 5.00 s?

Question 2

Change in internal energy is
 
  A) 1  Qcold/ Qhot.
  B) Q/m.
  C) Qout/ Win.
  D) Q - W.
  E) 1 - Tcold/ Thot.


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mcni194

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 135. meters
(b) 46.5 m/s

Answer to Question 2

D


Charlie

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

frankwu0507

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Reply 3 on: Yesterday
Excellent

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