Afarmer's silo is shaped like a cylinder. the silo has a volume of 18,840 ft³. the height of the silo is 60 ft. what is the silo's radius? use 3.14 to approximate π

Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge

What do you think car designers do if the damage caused by a crash test is too severe?

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.