Question

important question of gravitational class-9​

Answer 1

Answer:

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Explanation:

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Answer 2

Explanation:

1st photo defines about tangent.

2nd photo is about universal laws of motion.

3rd photo describes about importance of universal laws of motion.

net force in a particular area is thrust and force per unit area is pressure.

Pressure = thrust / area

relative density = density of substance/density of water