What kind of simple machine is a catapult?

What is different about each type of electromagnetic wave? Frequency Speed Wavelength Frequency and wavelength

Question - 8 A 0.280-kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. What is the mass of the second ball

Why it is possible to estimate, to a good approximation, the energy derived from a sugar cube in the body, by doing laboratory experiments?

Explain whether demand is likely to be elastic or inelastic for Big Macs. A. Elastic comma since many other fast food items could be considered close substitutes. B. Inelastic due to a lack of close substitutes. C.

How much work is required to move an electron through a potential difference of 3.00 volts? (1) 5.33 * 10^-20 J (3) 3.00 J (2) 4.80 * 10^-19 J (4) 1.88 * 10^19 J

A rocky space object of varying size

Three balls are kicked from the ground level at some angles above horizontal with different initial speeds. All three balls reached in their paths the samemaximum height.

A solar eclipse will occur Group of answer choices 1. at every full Moon. during every new Moon. 2. at full Moon only when the Moon is on the ecliptic. 3. at new Moon only when the Moon is on the ecliptic.

What happens when energy in the molecules of an ice cube when it begins to melt

ll of mass m is thrown vertically upward with an initial speed of v0. It experiences a force of air resistance given by F = - kv, where k is a positive constant. The positive direction for all vector quantities is upward.