Heat and Temperature Introduction to Thermal Physics Heat, energy and temperature pervade our lives. Just…

The orbits of satellites about a central massive body can be described as either circular…

Astronauts who are orbiting the Earth often experience sensations of weightlessness. These sensations experienced by…

The motion of objects is governed by Newton's laws. The same simple laws that govern…

A satellite is any object that is orbiting the earth, sun or other massive body.…

Planetary and Satellite Motion In the early 1600s, Johannes Kepler proposed three laws of planetary…

In the previous topic, an equation was given for determining the force of gravity (Fgrav) with which…

Isaac Newton's law of universal gravitation proposed that the gravitational attraction between any two objects…

Isaac Newton compared the acceleration of the moon to the acceleration of objects on earth.…

In the early 1600's, German mathematician and astronomer Johannes Kepler mathematically analyzed known astronomical data in order…