KE = 1/2(100 kg)(100 m/s)^2 = 500000 Joules ----------------------- KE = 1/2(100 kg)(50 m/s)^2 = 125000 Joules ---------------------- 5â¦00000 Joules/125000 Joules = 4 ------ The kinetic energy is reduced by a factor of 4 because the speed is squared.
Earth, the fifth-largest of the eight planets in the Solar System belongs to the Milky Way galaxy and is orbiting about 28,000 light years from the center of the galaxy. It is believed that currently it lies about 20 light years above the galaxy's equatorial plane in the Orion spiral arm.
Earth's orbit does not cause seasons. Many believe that the seasons on the Earth occur because of its elliptical orbit around the Sun, with winter occurring when the Earth is at the Aphelion, and summer when the Earth is at the Perihelion.This is not true.The Earthâs movement around the sun has very little effect on the onset of seasons at either hemisphere. In fact, the Earth is at the Perihelion or closest to the sun around the winter solstice, while the earth is farthest away from the sun or at the Aphelion around the summer solstice.his is not true. The Earthâs movement around the sun has very little effect on the onset of seasons at either hemisphere. In fact, the Earth is at the Perihelion or closest to the sun around the winter solstice, while the earth is farthest away from the sun or at the Aphelion around the summer solstice.