Explain why Mercury's surface temperature varies so much from day to night. more than 40 words.

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

Most of the volume of an atom is occupied by the

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples