Which of the following about dalton's theory of matter is true? a. atoms can be created. b.atoms of the same element have the same mass. c.compounds formed from two elements will not always have the same proportions. d.atoms can be divided into smaller parts.

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?

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane