The distance between two massive objects quadruples. By what factor has the gravitational force between them changed?
A) one eighth
B) one sixteenth
C) one fourth
D) one half
E) one third
Ans: B) one sixteenth
You might also like to view...
What is the eventual fate of a brown dwarf?
A) It remains the same forever. B) It gradually cools down and becomes ever dimmer. C) It gradually contracts and heats up until nuclear fusion ignites in its interior and it becomes a faint star. D) It becomes ever denser and hotter until it becomes a white dwarf. E) Gravity ultimately "wins" and it becomes a small black hole.
Which of the following is NOT a reason to use a reflecting telescope rather than a refractor?
A) Heavy lenses, which can only be supported at their edges, tend to deform under their own weight. B) Lenses are harder to focus than mirrors. C) Lenses are subject to chromatic aberration. D) A lens must have two precision surfaces; a mirror needs only one. E) Lenses absorb light, while mirrors do not.
The ideal gas in a sealed container has its absolute temperature quadrupled. What happens to the average time between molecular collisions in the gas?
a. It stays the same. b. It decreases to half its original value. c. It decreases but not to half its original value. d. It increases.
A lepton interacts via the strong interaction
Indicate whether the statement is true or false