The board has a mass of 2.19 kg and is 2.21 m long. The mass of cup 1 is 0.227 kg and it is placed 1.17 to the left of the balance point (at the left end of the board). The mass of cup 2 is 0.431 kg. (a) Where is cup 2 placed relative to the balance point if the board is balanced?

Determine the maximum r-value of the polar equation r =3+3 cos 0

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

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