Aboat floats in a lake. when the boat moves the force of resistance is proportional to the velocity of the boat. initially the boat is at rest. a person walks from the stern to the bow of the boat. what will be the position of the boat long time after the person stopped moving?

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?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?