A double-convex lens is made of glass with an index of refraction of 1.25. One surface has twice the radius of curvature of the other. The focal length is 60 mm. What are the two radii

The force will determine the acceleration.

What is the most useful equation for electric power?

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).