What are some things that are measured in voltage/volts?

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

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.