A particle with an electric charge of 2*10-3^C is a distance of 5 m from a particle with a charge of 8*10-5 C . What is the strength of the electrostatic force between the two particles?

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

When an object is heated it contracts. a. true b. false