An object is dropped from a 400-ft tower.

a) when does it hit the ground?

b) how fast is it going at the time of impact?

What is a carrier wave and how does it affect what you hear on the radio

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

"if the pressure acting on an ideal gas at constant temperature is tripled, its volume isa) reduced to one-third. b) increased by a factor of three. c) increased by a factor of two. d) reduced to one-half"