Which of the following provides evidence that earth's moon is rotating and revolving at the same rate? a. the moon looks very large from earth. b. we can see only one side of the moon from earth. c. the moon is always in the same position in the sky. d. the phases of the moon are not consistent.

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.