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Author Question: A line representing a wave front for a wave should be drawn: a. from the source to the receiver. ... (Read 172 times)

storky111

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on: Jul 28, 2018
A line representing a wave front for a wave should be drawn:
 a. from the source to the receiver.
  b. from one crest to the preceding crest.
  c. in the direction the wave is moving.
  d. along one of the crests of the wave.

Question 2

A 20-kg piece of aluminum (which has a specific heat of 900 J/kg  C) is warmed so that its temperature increases by 5.0C. How much heat was transferred into it?
 a. 4.5  104 J
  c. 1.4  105 J
  b. 9.0  104 J
  d. 2.0  105 J


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elyse44

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

D

Answer to Question 2

B


storky111

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Reply #2 on: Jul 28, 2018
Thanks


elyse44

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Reply #3 on: Jul 28, 2018
Welcome :)


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