a body of mass 8 kg moves in a straight line uniformly accelerated 3 m / s on a horizontal surface in the action of force 84 N. Find the coefficient of friction of the body and the surface of motion.

Protons and neutrons are found within the nucleus of an atom

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is