A frustrated physics student slides his textbook straight off his 80cm high desk. The book lands on the floor 60cm from the desk. Determine how fast he pushed the book off the desk.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

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.

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