An explanation on how satellites are put into orbit is noted.
I explain how an object is put into orbit about the Earth (to become a satellite)? I also include the relationship between gravity and velocity.
Understanding planet retrograde motion is the focal topic.
How can planet retrograde motion be explained by the Earth center hypothesis? By the Sun-center hypothesis?
Calculating the gravitational ratio between the Sun and the Earth is achieved.
The Sun does not pull you off the Earth. The sun is approximately 10^6 times as massive as earth, but at the Earth's surface, you are about 2.5 x 10^4 times as far from the center of the sun as you are from the Earth's center. By what factor is the Earth's gravitational pull on you stronger than the sun's?
"Geosynchronous" orbit problem
"Geosynchronous" satellites orbit at the same rate that the earth spins. A satellite is in "geostationary" orbit when it always stays above the same location on the earths surface. For geostationary orbits: Can this location be anywhere on earth? If not, where can it be? Is any altitude possible for these satellites? wh ...continues
How rocks can be determined by radioactivity.
Explain how the age of rocks can be determined by radioactivity. Give an example.
How scientists determine the internal structure of the Earth.
How can scientists determine the internal structure of the Earth, if the depth of the deepest well is only a tiny fraction of the Earth's diameter?
3. Impact cratering, volcanism, tectonics, and erosion are the four major processes that affect planetary surfaces. Briefly explain any two. (Please provide all references and complete Urls)
The ages of the Earth and Moon.
If the ages of the Earth and Moon are nearly identical, as believed, why are most rocks found on the Moon so much older than Earth rocks?
What do observations of the Moon suggest about its origin?
The differences between Earth's and Venus' atmospheres.
Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth's atmosphere. Explain why the atmospheres are so different.
