Calculate the areas and densities. Report the answers in the correct units. A. the area of a rectangle with sides measuring 3 times 10^1 cm and 3 times 10^-2 cm

B. the area of a rectangle with sides measuring 1 times 10^3 cm and 5 times 10^-1 cm

C. the density of a substance having a mass of 9 times 10^5 g and a volume of 3 times 10^-1 cm^3

D. the density of a substance having a mass of 4 times the 10^-3 g and a volume of 2 times 10^-2 cm^3

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.