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3 years ago

5

Galaxies contain on average about 100 billion stars. These stars are held together in galaxies by the force of _________________

between them.
A) friction
B) gravity
C) magnetism
D) pressure

2 answers:

Hunter-Best [27]3 years ago

8 0

You're answer would be B)Gravity.

Butoxors [25]3 years ago

7 0

Its not a or c just saying

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A spring that is compressed 14.5 cm from its equilibrium position stores 2.99 J of potential energy. Determine the spring consta

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Answer:

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Explanation:

k = Spring constant

x = Compression of spring = 14.5 cm

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The potential energy of a spring is given by

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Rearranging to get the value of k

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