Which of the following substances can be separated into simpler substances only by chemical means? A.
water
B.
granite
C.
salt water
D.
brass

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?