The speed of light in plastic is 2.0 x 108 m/s. Calculate the index of refraction for
plastic.

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

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

What is the popular use of lithium batteries