Astronomy

If an astronaut holds a 5-kg ball 2 meters (m) above the ground on the Moon, does it have the same potential energy it did when the astronaut held that ball 2 m above the ground on Earth? Explain your reasoning. Sample Solution

Astronomy

Write about Eratosthenes’ experiment and how he used it to determine the circumference of Earth. Sample Solution

Astronomy

Choose from the following list of common ”deep space” objects. Use interNet research (Include your list of URLs) to write a 1000 word paper about your chosen object type. Print a few pictures of examples of this type of object, explain what you find out, and try to...