In urban cities, power lines are plentiful and, through the use of combustion, can transform thermal energy into electrical energy. however, in remote rural areas, where there are few power lines, a more practical way of creating electrical energy is through the use of
a) turbines
b) solar cells
c) burning coal
d) nuclear power plants

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)