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Author Question: What is currently included in the study of geology? a)only investigations involving rocks and ... (Read 93 times)

leilurhhh

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on: Jul 28, 2018
What is currently included in the study of
  geology?
  a)only investigations involving rocks and minerals
  b)only data on the structure and composition of Earth
  c)investigation of the composition, structure, and history of all planets and moons in our solar system
  d)all studies of matter in any form throughout the entire universe

Question 2

A 3.0-kg mass is dropped from the edge of a 50-m tall building with an initial speed of zero. The mass strikes the ground with a downward velocity of 25 m/s. Find the change in mechanical energy of the mass caused by air resistance between the point where it is dropped and the point where it strikes the ground?
 a. 0.46 kJ
  b. 0.53 kJ
  c. 0.61 kJ
  d. 0.38 kJ
  e. 0.81 kJ


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scottmt

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

c

Answer to Question 2

b


leilurhhh

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  • Posts: 560
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

phuda

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Reply 3 on: Yesterday
Wow, this really help

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