zero net force
Radiant energy will either be reflected or absorbed by a surface. The usual rule regarding this reflection depends on the color of the object and the color of the light. For example, a red object only reflects red light, and absorbs the rest. A blue object only reflects blue light, and absorbs the rest. This goes for all of the colors. When radiant energy is absorbed, the object will heat up. Hope this helps!
If the earth loses gravity only high density elements will remain. The rest, water, atmosphere, organic and unorganic inhabitants of earth surface, will fall apart in to open space.
"A meteroid that hits earth's atmosphere becomes a meteor. When it comes to rest on the earth's surface it is then known as a meteorite."Actually, the portion of a meteor that hits the surface of the earth is called a meteorite. A meteor is the steak of light we see acrss the sky, which can be part of a comet, a meteoroid, an asteroid, or any other interplanetary debris we may see from earth. However, a meteor is the larger part that can be seen, but not the actual portion that hits the earth. (Source: Astonomy Today, 6th edition by Chassion & McMillan)
The Earth exchanges mass and energy with the rest of the cosmos. This means that the Earth is an open system.
sun ;)
scale
The Earth's gravity stops the object from floating when at rest.
Friction.
There are lots of ifs in this question and answer. If the 100 pound Earth object could rest on the outer surface of Jupiter the answer would be 250 pounds. But, Jupiter is a gas planet. That is, Jupiter is primarily made of gas and liquid. So, the object could not rest on the outer surface. There may be a solid surface near it's center but no one knows. Jupiter is 318 times as heavy as Earth so if Jupiter were solid and the size of Earth the object would weigh 318 times a much or 31,800 pounds. But, it is much larger than Earth so the outer surface is much farther from the center. The farther away the object is from the center the less the object will weigh.
Gravity and the upward force of the surface the object is resting on.
Will you accept heat? Or would you prefer the potential energy it has before falling down a well? It's all relative.
There CAN be, as long as the force is being counterd by an equal and opposite force.
That depends what data you are given. Close to the Earth's surface, such an object will accelerate at 9.8 meters/second2, so if it starts from rest, after "n" seconds, it will have a speed of "9.8n" meters/second.
Radiant energy will either be reflected or absorbed by a surface. The usual rule regarding this reflection depends on the color of the object and the color of the light. For example, a red object only reflects red light, and absorbs the rest. A blue object only reflects blue light, and absorbs the rest. This goes for all of the colors. When radiant energy is absorbed, the object will heat up. Hope this helps!
The rest of the world are experiencing worse price rises then the US.
No. The surface of the earth is held to the planet by gravity. However parts of the surface move relative one to another - this is called plate tectonics.
About 71 % of the surface is covered by water. The rest (29 %) is land.