If a weightlifter lifts a 286 kg mass 0.25 meters above his head, how much PEg does the mass have?

A sprinter has a mass of 80kg and a kinetic energy of 4000 j. What is the sprinter's speed

a ball of mass 0.18 kg moving with speed 11.3 m/s collided head on with an identical stationary ball which quantity can be calculated from this information alone

What marine life zones are warm well lit and have lots of marine life

The first step in the scientific method is is usually

As a rocket is accelerating vertically upward at 92 m/s^2 near the Earth's surface, it releases a projectile. Immediately after release the acceleration (in m/s^2) of the projectile is: A) 9.8 down. B) 9.8 up C) 9.

A crude approximation for the x component of velocity in an incompressible laminar boundary layer is a linear variation from u = 0 at the surface (y = 0) to the freestream velocity, U, at the boundary-layer edge (y = δ).

Why did dad leave mom?

Sal drew the electron dot diagram of an aluminum atom as shown. How should Sal correct his diagram? He should add five more dots so that the atom obeys the octet rule. He should add ten more dots so that all thirteen electrons are shown.

What uses electricity

How do the elements in the Noble Gas family compare?