Is radioactivity physical or chemical property?

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

The radius of an atom is closest in size to a

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false