Gravitational force is reduced by between objects. a. one half when the distance doubles b. the square of the distance c. one tenth when the distance triples

The mini-refrigerator fire was most likely caused by what type of wiring?

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.