Light and radio signals seldom travel in straight lines through air, because the
pressure, temperature, and density of air change with altitude. Light and radio
signals almost always curve vertically, and usually downward.
If you were to draw a picture of the real earth's surface, with the real path of a
light beam or radio signal traveling above it, the surface of the earth would curve
downward on the drawing, and the light or radio signal would also curve above it.
The distance between the surface and the light or radio signal would change across
the drawing, depending on how strongly the signal curved, and in which direction
(up or down).
It would be possible to distort the drawing in such a way as to make the light
or radio signal appear to be a straight line. In order to do that, you'd have to
change the curvature of the earth's surface on the drawing, and maintain the
original spacing between the surface and the radio signal at every point.
The number by which you have to multiply the true earth radius in order to
make the light or radio signal's path appear straight on the drawing, is the
"effective earth radius factor". It's a characteristic of atmospheric conditions
(specifically, the vertical gradient of the atmosphere's index of refraction),
and it's used in designing the optimum physical configuration of point-to-point
radio links, i.e. how high above the ground to mount the antennas at each end
of the link.
Since the distance from the Earth's center will be doubled, the force or weight will be reduced by a factor of 4.
Since the distance from the Earth's center is doubled, the force will be reduced by a factor of 4.
It is about 0.949 times Earth's radius.
radius is 2
If the radius is tripled then the Area will be greater by a factor of 9. And the circumference will be greater by a factor of 3.
Sara would weigh exactly the same as on Earth. The radius of the planet does not make any difference on ones weight. The mass of the planet is the crucial factor.
If you are a believer, then God did but if you are not, then nobody did. The radius of the earth existed and therefore ots radius did before there was any form of life on earth to invent it.
Venus' radius = 0.95 of Earth's Venus' mass = 0.815 of Earth's
Europa: 1561 km radius Earth: 6371 km radius The diameter is twice the radius.
Mercury's radius is 0.3825 that of Earth Jupiter's radius is 11.209 that of Earth So: (0.3825/11.209)*100 = 3.41 percent.
Distance from Earth to Moon is approximately 60.34 times larger than radius of Earth.
the moon's radius is about one quarter the radius of earth The moon has no atmosphere and the earth does