the mass of an empty density is 20 g it's mass when filled with water is 40g and 50g when filled with filled with liquid x given the density of water if 1000kg/m3 .calculate a)mass of water. b)volume 9f water that filled the density bottle .c)volume 9f the density bottle. d)the density of liquid x

double the distance = divide strength by 4

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).

the components of a vector are the parts of the vectors that are to each other.

b perpendicular