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Author Question: Are you in orbit around anything? A) No, because you are at rest relative to space. B) No, ... (Read 7 times)

yoroshambo

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on: Jul 29, 2018
Are you in orbit around anything?
 
  A) No, because you are at rest relative to space.
  B) No, because you are at rest relative to Earth's surface.
  C) Yes, you are in orbit around the sun.
  D) Yes, you are in orbit both around the sun and around Earth's center.
  E) Yes, you are in orbit around Earth's center.

Question 2

A firecracker explodes in midair and breaks up into many fragments. Which of the following statements are true regarding conditions immediately before and immediately after the explosion:
 
  I. The total momentum of the fragments is equal to the original momentum of the firecracker.
  II. The total kinetic energy of the fragments is equal to the original kinetic energy of the firecracker.
  A) Statement I only
  B) Statement II only
  C) Both Statement I and Statement II
  D) Neither statement is true.


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sarah_brady415

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


yoroshambo

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Reply 2 on: Jul 29, 2018
Excellent

Hdosisshsbshs

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Reply 3 on: Yesterday
Gracias!

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