Suppose the Sun were suddenly to shrink in size but that its mass remained the same. According to the law of conservation of angular momentum, what would happen?
A) The Sun would rotate faster than it does now.
B) The Sun's rate of rotation would slow.
C) The Sun's angular size in our sky would stay the same.
D) This could never happen, because it is impossible for an object to shrink in size without an outside torque.
Question 2
Suppose your normal resting heart rate is 60 beats per minute. Now, suppose you board a spaceship that travels away from Earth at 90 of the speed of light. While on the ship, you measure your heart rate. What will it be?
A) It will be 46 beats per minute.
B) It will be 74 beats per minute.
C) It will still be 60 beats per minute.
D) It will be 12 beats per minute.
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