A car slowed from 40 m/s E to 10 m/s E in 6 seconds. Calculate the acceleration a) -5.0 m/s2
b) 5.0 m/s2
c) -30 m/s2
d) 30 m/s2

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

What structural formula represents 4 electrons shared between two atoms?