A0.2-kg block is held in place by a force that results in a 0.10-m compression of a spring beneath the block. the spring constant is 1.0 × 102 n/m. assuming the mass of the spring is negligible compared to that of the block

Why do scientists believe that light is made of streams of particles? scientists believe that light is made of streams of particles because only the presence of photons can explain phenomena observed during experiments on the photoelectric effect. these observations include only some frequencies of light causing the ejection of electrons, no time gap existing between light striking a metal and electrons being ejected, and intensity having no effect on the kinetic energy of the ejected electrons.

The diagram shows a person using a piece of gym equipment to lift weight which best describe the body in terms of simple machine

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane