Aradio antenna points straight up from the ground. a person standing 1 km away receives radio waves with an intensity i 1 hw/m2. what is the intensity received by an airplane 2 km away, at an altitude of 500 m? 2km 500m 1km

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

What determines the amount of inertia an object has