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Author Question: Aluminum has a positive coefficient of thermal expansion. Consider a round hole that has been ... (Read 107 times)

hbsimmons88

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on: Jul 27, 2018
Aluminum has a positive coefficient of thermal expansion. Consider a round hole that has been drilled in a large sheet of aluminum. As the temperature increases and the surrounding metal expands, the hole diameter will
 
  A) increase.
  B) decrease.
  C) remain constant.
  D) depends how much metal surrounds the hole

Question 2

A hunter points a rifle horizontally 3.30 m above the ground. The bullet leaves the barrel at 325. m/s.
 
  (a) How long did it take for the bullet to strike the ground?
  (b) How far horizontally did it travel?


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elizabethrperez

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

A

Answer to Question 2

(a) 0.821 s
(b) 267. m


hbsimmons88

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

sarah_brady415

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Reply 3 on: Yesterday
Wow, this really help

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