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Why do spacecraft use solar cells to generate electricity rather than burning coal?
Wiki User
∙ 12y ago
Burning coal releases harmful gases and it may have some bad effects in space. Solar power is more efficient
Wiki User
∙ 12y ago
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What unique happened on Gemini 5 flight?
Gemini 5, crewed by commander L. Gordon "Gordo" Cooper and pilot Charles "Pete" Conrad, was the first spacecraft to use fuel cells rather than batteries for electrical power.
An object in space that reflects light?
Most stars, like our sun generate light through fusion. However, the planets in our solar system appear like stars but actually are reflecting the light from our sun rather than producing light. The moon also reflects a tremendous amount of light.
How does the slingshot effect or gravity work to assist a change in orbit of a spacecraft?
Gravity AssistIt's called Gravity Assist. Overcoming gravity is all about velocity. Escaping Earth's gravity requires approximately 25,000 mph. Escaping the Solar System needs more than 45,000mph. We dont have a large enough rocket to achieve that speed so spacecraft can use a planets gravity to increase its velocity and then the planet can "slingshot" it onto a new trjectory toward the next target. The gravity of a large object can "pull" something to a higher velocity and then, rather than crash into the object, the craft can just miss the planet or moon and, for a moment, go into orbit. The centripital force of the orbit will increase the craft's velocity and "shoot" it off on a new trajectory. ------------Nope, that's wrong. An orbit is (by definition) symmetrical. There is no change of energy in an orbit (that is, no change to the sum of kinetic energy and potential energy). Any kinetic energy gained by a spacecraft on approach to a planet, by trading gravitational potential, must be lost on leaving it, as the kinetic energy is converted back into potential.You can only make sense of a gravity assist by also considering the planet's orbit around the sun. By arranging a suitable slingshot configuration you can steal the orbital energy of the planet around the sun and give it to the spacecraft. The planet ends up in a lower (less energetic) orbit, while the spacecraft ends up in a higher orbit relative to the sun. It has nothing to do with the centripetal force of the spacecraft's orbit or hyperbolic trajectory around the *planet*.
What do inner planets and outer planets have in common?
They are all approximately spherical, they all orbit the sun directly. They are also large enough to dominate their orbit. They were all formed around the same time. They all reflect sunlight to make them visible to us, rather than generate their own light such as a star.
What did voyager discover?
On December 18, 2004, Voyager 1 passed the termination shock. This is the unofficial date of departure from the Solar System. Whilst the spacecraft still remains under the Sun's influence, at the termination shock particles from the interstellar medium interact with solar particles, signaling that the hypothetical heliopause is not far from this point. It did not discover anything, rather it inferred the existence of the heliosphere.
How are tidal waves used to generate electricity for the power grid?
Tidal waves are not used to generate electricity. A tidal wave is a huge wave, rather like a tsunami, that occurs very infrequently, and without warning.Tides are harnessed to produce electricity, and also waves are used, but not tidal waves.
How do you conserve wind energy?
Wind energy, or rather, electricity produced from wind energy, can be stored in batteries. It can also be used to pump water uphill. This water can then be used later when needed to generate electricity (hydro-electricity).
Do crank flashlights take electricity?
Sure they do. Only difference is that you generate it yourself by the crank rather than buying it pre-packaged in batteries.
What was the name of the spacecraft sent to ploto during new horizons mission?
The name of the spacecraft is, rather anticlimactically, "New Horizons".
When was I'd Rather Be Flag-Burning created?
I'd Rather Be Flag-Burning was created in 1995.
What form of energy is stored in the water in a hydroelectric plant?
Electricity isn't stored in the water, but rather electricity is generated from the waters motions. The laminar flow of the water rotates turbines, which generate kinetic energy. Which is then converted to electrical energy usable by us, the consumer
What factors have contributed to the supply of electricity not keeping up with the growing demand for electricity?
Partly the obsession by governments with climate change, and the amount of effort that has been put into installing wind-turbines, which are unreliable, expensive, and cannot generate their specified power, rather than into conventional power stations.
Why was mars the first planet to be visited by a spacecraft?
It's the closet and rather similar to the earth.
Why do the astronauts use an electric car on the moon?
I'm conjecturing, but if you mean why an electric car rather than a ordinary gasoline powered car. Burning gasoline requires oxygen and there is none on the moon. Also, carrying gasoline in a spacecraft would be heavy and dangerous.
WHY DO ASTRONAUTS USE THE ELECTRIC CAR ON THE MOON?
I'm conjecturing, but if you mean why an electric car rather than a ordinary gasoline powered car. Burning gasoline requires oxygen and there is none on the moon. Also, carrying gasoline in a spacecraft would be heavy and dangerous.
Electricity is the device that control?
A: Electricity is not a device but rather a fiscal flow of electrons
One advantage of using wind turbines rather than burning fossil fuels to produce electricity?
No air or water pollution as from burning fossil fuel. No chance of running out of wind. No territorial disputes over ownership of wind. No interruptions due to striking miners or civil war.
