Missy diwater the former platform diver for the ringling brother's circus had a kinetic energy of 15000 j just to prior to hitting the bucket of water. if missy's mass is 50 kg, then what is her speed?

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy