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Author Question: Today, the U.S. imports about what percentage of the oil it uses? a. 10 b. 25 c. 40 d. 60 e. ... (Read 29 times)

big1devin

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on: Jul 28, 2018
Today, the U.S. imports about what percentage of the oil it uses?
 a. 10 b. 25 c. 40 d. 60 e. 80

Question 2

A 50-gram superball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the average acceleration of the ball during this time interval?


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ebenov

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

d

Answer to Question 2

13 400 m/s2


big1devin

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


ebenov

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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