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Author Question: A granite block is mostly empty space because the atoms in the granite are A) in perpetual ... (Read 438 times)

deesands

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on: Jul 29, 2018
A granite block is mostly empty space because the atoms in the granite are
 
  A) in perpetual motion.
  B) mostly empty space themselves.
  C) held together by electrical forces.
  D) not as close together as they could be.
  E) invisible.

Question 2

A planet orbiting the Sun has speed v = (GM/d). Escape speed from the Sun is v = v(2GM/d), where G is the gravitational constant, M is Sun's mass, and d is the distance from the Sun.
 
  Noting that this tells us that escape speed is 2 times orbital speed, which planet would fly out of the solar system by a 1.5 increase in orbital speed?
  A) Mercury.
  B) Venus.
  C) Earth.
  D) all of the above
  E) none of the above


ashely1112

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

Answer: B

Answer to Question 2

Answer: D


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