How does the wavelength of light we observe from those galaxies compare with its original wavelength when it was emitted?.

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

How would a small bar magnet be oriented when placed at position x?

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little