A sheet of metal and a sheet of paper are left next to each other in the sunshine. After several minutes, the metal will be warmer to the touch than the paper. The metal is a(n) and the paper is a(n)

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

What is the increase in density of a medium due to wave travel?

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)