1. You (80kg) and you beau (45kg) are at an ice rink holding hands. You start at
rost facing each other, and push apart, going off in opposite directions. Il your
velocity is Bra/s, what is the velocity of your beau?
Before
Alter:

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

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) =_