Water flows over a section of Niagara Falls at a rate of 2.4 * 106 kg/s and falls 67 m. What is the power wasted by the waterfall? The acceleration due to gravity is 9.8 m/s 2. Answer in units of W.

A 2,294N force is applied to a 408kg mass. What is the acceleration of the mass?

6. A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. a. How long does the total trip last? b.

A security guard walks at a steady pace, traveling 190 m in one trip around the perimeter of a building. It takes him 250 s to make this trip

Which of the following is not an SI unit?

Which is better at storing thermal energy, equal masses of water or the unknown metal?

If one light bulb is removed from a parallel circuit with three bulbs, the brightness of the other bulbs will decrease.

If two objects collide and one is initially at rest, is it possible for both to be at rest after the collision? Is it possible for one to be at rest after the collision.

Big commercial airplanes are sometimes pushed to an area by a tractor. A 1800-kg tractor exerts a force of 1.75x 104 N backward on the pavement, and the system experiences forces resisting motion that total 2400 N.

Ferns that eject spores generally do so in pairs, with two spores flying off in opposite directions. The structure from which the spores are launched is quite lightweight.

The similarity between intelligence scores of fraternal twins raised together is