Please help im failing this class and i have to get these answers right for my test. You can see the planets at night because

A. they produce their own light.

B. they reflect light from each other.

C. nuclear fusion takes place in their cores.

D. sunlight reflects from their surfaces.

The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.

Which statements did both aristotle and ptolemy assume? check all that apply.

Acid rain is caused by human activity. select the best answer from the choices provided t f