What type of simple machine is a catapult? (incline plane, lever, pulley, screw, wedge, or a wheel and axle) How do you know?

What does the area under a curve of a graph of velocity versus time yield? A. Average acceleration O B. Average velocity OC. Total distance 0 D. Displacement

Suppose you increase your walking speed from 6m/s to 12 m/s in a period of 2 s

Suppose earth did not rotate. How would conditions and life on earth be different

The energy associated with the random motion of molecules or atoms within a substance is

What affect does friction have on motion

The characteristics that follow are characteristics of two of Galileo's surviving double-convex lenses. The numbers given are magnitudes only; you must supply the correct signs. L 1: front radius 950 mm, rear radius 2700 mm, refractive index 1.

Which car has the most kinetic energy? A car of mass 1500 kg with speed 5 m/s or A car of mass 1300 kg with speed 3 m/s or a car of mass 1200 kg with speed 2 m/s or a car mass 1400 kg with speed 4 m/s

A 500 kg table with 4 legs rests on solid flat ground. I place 3 books on the center of the table with masses of 10 kg, 20 kg and 30 kg respectively. What is the normal force between the ground and one leg of the table?

Fluorine-21 has a half-life of approximately 5 seconds. What percentage of the original nuclei would remain after 20 seconds

Which of these is an example of a totalitarian regime A.) Canada under prime minister Trudeau's rule B.) the Soviet Union under Josef lo