Suppose we could magically triple the distance between Earth and the moon. This would cause the gravitational force by Earth on the moon to be
A) increased to three times its former value.
B) be unchanged.
C) reduced to 1/4 of its former value.
D) reduced to 1/3 of its former value.
E) reduced to 1/9 of its former value.
E
You might also like to view...
A projectile is thrown upward at 24° with the vertical and returns to the horizontal ground 12.5 s later with no air drag
(a) How fast was it thrown? (b) How far from its original position did it land? (c) How high above its original position did it go?
The acceleration due to gravity on Planet A is one-sixth what it is on Planet B, and the radius of the Planet A is one-fourth that of Planet B. The mass of Planet A is what fraction of the mass of Planet B?
A) 1/6 B) 1/16 C) 1/24 D) 1/96 E) 1/12
A 2.0-kg block slides down a fixed, rough curved track. The block has a speed of 5.0 m/s after its height above a horizontal surface has decreased by 1.8 m. Assume the block starts from rest. What is the change in mechanical energy of the block caused by the force of friction during this descent?
a. -14 J b. -12 J c. -10 J d. -16 J e. -25 J
Which of the following statements cannot be associated with the electroweak interaction?