What is the maximum number of electrons an orbital can contain?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied