If the electric field strength is measured as 150 V/m across two plates that are placed 3.5 cm apart, what is the potential across the plates?
5.3 Volts
530 Volts
4300 Volts
43 Volts

Which feature indicates that mars resides in the inner region of the solar system

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?

Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match