For a total of 4 hours, a yacht sailed east at 50 kilometers per hour. The sky was cloudy for half of that time. How far did the yacht sail while the sky was cloudy? Write your answer as a whole number.​

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.