In the model a neutron star is rotating sending out beams of radiation and when those beams are directed toward the earth, we receive a pulse from the star.

Arock collection comes from which part of earth?

An object weigh 40n in air ,weigh 20n when submerged in water, and 30n when submerged in a liquid of unknown liquid density. what is the density of unknown of liquid?

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?