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anygoal [31]
3 years ago
14

A protostar forms once the nebular cloud condenses and the core begins

Physics
2 answers:
Fantom [35]3 years ago
6 0
A protostar forms once the nebular cloud condenses and the core begins nuclear fusion.
enyata [817]3 years ago
4 0

Answer:

Explanation:

A protostar forms once the nebular cloud condenses and the core begins HEAT.

A protostar is a very young star that is still gathering mass from its parent molecular cloud. The protostellar phase is the earliest one in the process of stellar evolution. A protostar is the earliest stage in star formation in the universe.  When the gas cloud begins to collapse on its own weight, the core begins to heat up. The heat is due to the force of compression of the dust and gas under its gravity. When the pressure and temperatures become high enough, the hydrogen in the core begins to fuse.

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The sun's energy is stored in fossil fuels. true or false.
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Yes,suns original energy are still stored at the bonds of fossils in which they taken long,long time ago and these fossils powered now industries,fuel for vehicles.In those chemical bonds holds much energy packed together for centuries.
8 0
3 years ago
Determine the energy in joules of a photon whose frequency is 3.55 x10^17 hz
asambeis [7]
By using the Plancks-Einstein equation, we can find the energy;
E = hf
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What kind of charge does an object have when it has given away electrons?
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shtirl [24]

Answer:

C

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3 years ago
I need so much help 50 points!!!!!!<br><br>complete the graph
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<u>First Symbol </u>: Cobalt (Co)

Its Group Number - 9

Its Period Number - 4

Its Family Name - Transition Metal

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Its Group Number - 14

Its Period Number - 2

Its Family Name - Semiconductor

<u>Third Symbol</u> : Astatine (At)

Its Group Number - 17

Its Period Number - 6

Its Family Name - Halogen

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Its Period Number - 3

Its Family Name - Alkaline Earth Metal

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