An object of mass m is falling from a building in the absence of air resistance and F
is the force of gravity.

What is the relationship between the force of gravity acting on the object (F
) and its mass (m
)?

A
F=m/g

B
F=g/m

C
F=mg

D
F=m2g

force tends to be low and long diustance masses are high

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