If 2.0 x 10^-4 c charge passes a point in 5.0 x 10^-5 s, what is the rate of current flow?
4.0 x 10^-1 a
1.0 x 10^2 a
1.0 x 10^-10 a
4.0 x 10^0 a

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?