In July 1994 the comet shoemaker-Levy 9 collided with the planet jupiter ,as a scientists had predicted. To be able to accurately Predict when a comet will collide with a planet, it is essential to understand

The mini-refrigerator fire was most likely caused by what type of wiring?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?