Physics

Question

Question 5

A galaxy contains stars, gas and dust. This matter must be held

together or the galaxy will break apart. What is responsible for

holding the stars, gas and dust together in a galaxy?

О

a

C

• d

heat

light

gravity

friction

Answer

Gravity is responsible for holding the stars, gas, and dust together in a galaxy.

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Gravity is the force of attraction between any two objects with mass. In a galaxy, the stars, gas, and dust all have mass, and...