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a_sh-v [17]
3 years ago
11

What is the astronomy made of

Physics
1 answer:
vekshin13 years ago
4 0

Answer:

Astronomers like to call all material made up of protons, neutrons and electrons "baryonic matter". Until about thirty years ago, astronomers thought that the universe was composed almost entirely of this "baryonic matter", ordinary atoms.

Explanation:

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Explanation:

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3 years ago
A 5 kg block is sliding down a plane inclined at 30^0 with a constant velocity of 4 m/s. To determine the coefficient of frictio
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Answer:

The necessary information is if the forces acting on the block are in equilibrium

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Explanation:

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3 0
3 years ago
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A 360-N child is in a swing that is attached to a pair of ropes 1.90 m long. Find the gravitational potential energy of the chil
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