For two identical satellites in circular motion around the earth, which statement is true?
a. the one in the higher orbit has more kinetic energy
b. the one in the lower orbit has more total energy
c. the one in the lower orbit has less total energy
d. both have the same total energy

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2