The total energy an object possesses equals
a kinetic energy minus potential energy
b potential energy minus kinetic energy
c one-half kinetic energy plus potential energy
d kinetic energy plus potential energy

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. what is another name of the type of wave that transfers energy in this way?

An object has a weight of 500 on earth what is the mass of this object

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?