PLEASE HELPP A girl places a stick at an angle of 60.0° against a flat rock on a frozen pond. She pushes at
an angle and moves the rock horizontally for 2.00 m across the pond at a velocity of 4.00 m/s
and a power of 160.0 W. What force did she apply to the stick? How much work did she do?
Your response should include all of your work and a free-body diagram.
please show work

b.transmitters send radio waves, and receivers capture radio waves.

true is the correct answer

hope i

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me