The specific heat of a substance is the energy required to produce a certain change in a. appearance b. volume c. temperature d. state

If two metal balls each have a charge of -10^-6 c and the repulsive force between them is 1 n, how far apart are they? (coulomb's constant is k = 9.0x 10^9 n-m^2/c^2? 9.5 m 9.0 mm 9.5 cm 0.9 m .

Distinguish between a transverse wave and a longitudinal wave.

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?