NEED HELP ASAP PLEASE! A daredevil will complete a stunt in which he will launch off a ramp and land in a portable swimming pool. If he leaves the ramp horizontally with a speed of 10 m/s, and the ramp is 25
m off the ground, where should the pool be placed?

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

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

490 n

f=125n a=2.5m/s2