An alloy contains 40% by mass of lead and 60% by mass of tin. Determine the density of the alloy in kgm^3. (Density of lead = 1.4g/cm^3 and density of tin = 7.3g/cm^3)

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.

What is a carrier wave and how does it affect what you hear on the radio

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?