Multiple Choice
Assume that Earth is in circular orbit around the Sun with kinetic energy K and potential energy U, taken to be zero for infinite separation.Then, the relationship between K and U:
A) is K = U
B) is K = -U
C) is K = U/2
D) is K = -U/2
E) depends on the radius of the orbit
Correct Answer:
Verified
Correct Answer:
Verified
Q19: Neglecting air resistance, a 1.0-kg projectile has
Q20: In order to fire a projectile upward
Q21: Of the following where would the weight
Q22: In the formula F = Gm<sub>1</sub>m<sub>2</sub>/r<sup>2</sup>, the
Q23: Suitable units for the gravitational constant G
Q25: A planet travels in an elliptical orbit
Q26: Consider the statement: "Earth moves in a
Q27: The mass density of a certain planet
Q28: The escape velocity at the surface of
Q29: Each of the four corners of a