A thermodynamic system changes in the cycle described by the graph. In the change from point 4 to point 1,180 J of heat are added. In the change from point i to point 3,650 J of heat are added. What is the net internal energy change as the system changes from point 4 to point 3?

In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.