The wires connecting the switches, light-bulbs and buzzers must start and end at the power source before the circuit can work. the power source could be a a) battery. b) light-bulb. c) switch. d) wire.

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

Why should seat belts not be mandatory quick plz

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus