This refers to the previous question in which a wave propagates in air and is transmitted through a piece of paper. Does increasing the frequency increase the amplitude of a sound wave transmitted through the piece of paper

50 inches should be the resultant vector

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

nah.   i'm just sleepy.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d