A glass rod is rubbed with a piece of silk. During the process ...

[genevieve1028]

A glass rod is rubbed with a piece of silk. During the process the glass rod acquires a positive charge and the silk
 
  A) acquires a positive charge also.
  B) remains neutral.
  C) acquires a negative charge.
  D) could either be positively charged or negatively charged. It depends on how hard the rod was rubbed.

Question 2

Consider a small satellite moving in a circular orbit (radius r) about a spherical planet (mass M). The period does not depend upon
 
  A) g at the satellite position.
  B) the planet mass.
  C) the satellite mass.
  D) the radius r.
  E) the universal gravitational constant.

[paavo]

Answer to Question 1

C

Answer to Question 2

C

[genevieve1028]

TYSM

[rachel]

Excellent