1 An 850 kg cannon containing a 14.0 kg cannonball is at rest. The cannon fires the cannonball to the right with a velocity of 85.0 m/s. Find the recoil velocity of the cannon.

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

What are similarities and differences between refraction, reflection, diffraction and absorption?

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato