Velocity is speed in a certain direction.

True
False

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

What are the theoretical properties of a gas at a temperature of 0 kelvin?

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