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.

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )