A physics student drops a water balloon from an upstairs window. The window is 26.45 m from the ground. How long does it take for the balloon to hit the ground? (Round to the
nearest tenth)

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

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