What is the period of a wave that travels through a spring at 2.5 m/s and has a wavelength of 1.3 meters?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

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.

For which pair of objects would adding the same a