What is the process in which a substance changes from a solid into a liquid?

Indentify two cities on the map where measurements of the altitude of Polaris are within one degree of each other

Find the momentum of a 51kg object moving at a speed 5.21 m/s.

Which is the force that slows moving things down? A. momentum B. acceleration C. friction D. centripetal force

A guitar string is plucked and set into vibration. The vibrating string disturbs the surrounding air, resulting in a sound wave.

Parallax can be used to measure a star's

Charlotte, a 60.0-kg skin diver, shoots a 2.0-kg spear with a speed of 15 m/s at a fish who darts quickly away without getting hit.

All objects are attracted to each other by the force of a. weight. b. mass. c. inertia. d. gravity.

landslides and mudslides caused by lava flows are ___ deadly than the lava flow itself. a. more b. less

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor