A 2.5 kg sample of water with an intial temperature of 98o C loses 375,000 J of heat. What is the final temperature of the water? a
81.43o C

b
36.55o C

c
57.92o C

d
62.17o C

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

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

b perpendicular