PLEASE HELP :) --- Suppose you are riding in an elevator. For each case below, is your apparent weight (reading on a scale) equal to, greater than, or less than your true weight? a. You are ascending at a constant speed
b. You are ascending and slowing down
c. You are descending and speeding up

answer; i believe the correct answer is (40,000 j) good luck

answer; equivalent to a one(1) horsepower motor;

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