Amass attached to a string swings back and forth. the maximum displacement from equilibrium is the
a. velocity
c. period
b. amplitude
d. elastic potential

Which one of the following research methods can show cause and effect

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?