At apogee, the center of the moon is 406,395 km from the center of Earth and at perigee, the moon is 357,643 km from the center of Earth. What is the orbital speed of the moon at perigee and at apogee? The mass of Earth is 5.98 1024 kg.

Why is it important to use placebos and a double-blind approach in some studies

Which of the following is an example of uniform motion? A car going around a circular track at a constant speed. A person at rest starts running in a straight line in a fixed direction. A Ball dropped from the top of a building.

Which of the following is NOT an example of a transmutation? A. Uranium-238 emits an alpha particle forms thorium-234 B. Uranium-238 is bombarded with a neutron to produce uranium-239 C. Potassium-38 emits a beta particle and forms argon-38 D.

How does the doppler effect affect the velocity from a sourse that is approaching you?

Different between sky and space

The metallic elements which all react in water are found in the: same group same period rare earth elements

How much work is required to move a box 5 meters across the floor with a force of 15N?

Why have plants in the alpine biome adapted to survive on limited nutrients?

At a molecular level, does plasma have more or less energy than other states of matter?

A bobsledder pushes her sled across horizontal snow to get it going, then jumps in. After she jumps in, the sled gradually slows to a halt.