The Space Shuttle travels at a speed of about 7.70 103 m/s. The blink of an astronaut's eye lasts about 115 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?

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.