An astronomer see a star that is very far away but still very bright. What can she conclude about the star? The star must be very large.

The star must be very small.

The star must be moving away from Earth.

The star must be moving closer to Earth.

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.