Particles q1, q2, and q3 are in a straight line. Particles q1 = -5.00 x 10-6 C, q2 = +2.50 x 10-6 C, and q3 = -2.50 x 10-6 C. Particles q1 and q2 are separated by 0.500 m. Particles q2 and q3 are separated by 0.250 m. What is the net force on q2?

the answer is b i think

temp rises, and expansion

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it