While on a luge run in the Olympics, the sled (mass = 157 kg) rounds a horizontal curve of radius 5.8 m with a speed of 18.5 m/s. Assuming there is no friction, what is the normal force exerted by the track on the sled?

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_

Match each scenario to the form of energy it represents