Explain fiber optic methods of pressure sensing, piezoelectric, magnetostrictive and hall-effect sensors, smoke and fire detectors.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

i would like to make dinner for my mom, dad, and sister

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