A car drives at a constant speed of 3 m/s around a circle with radius 20 m. What is the centripetal acceleration of the car?
A. 0.45 m/s2
B. 0.15 m/s2
C. 6.7 m/s2
D. 9.2 m/s2

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt