What makes a material a good insulator? A. the phase of the material

B
tightly bound valence electrons

C
the cost of the material


D
electrons can be easily shared

What are chlorofluorocarbons and what impact do they have on the atmosphere?

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?