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Anestetic [448]
4 years ago
15

What is gravity and why is it important to man

Physics
2 answers:
Free_Kalibri [48]4 years ago
6 0

Answer:

Gravity is important because it keeps us on the earth instead of floating away. It was discovered from an apple falling on Issac Newton i believe.

Explanation:

Tcecarenko [31]4 years ago
4 0

the force with which earth pulls any object towards it`s centre is called gravity....It`s important to man because it`s making people to be able to stand in the surface...

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3 years ago
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suter [353]

Answer: 0.258 N

Explanation:

As the density of the object is much less than the density of water, it’s clear that the buoyant force, is greater than the weight of the object, which means that in normal conditions, it would float in water.

So, in order to get the ball submerged in water, we need to add a downward force, that add to the weight, in order to compensate the buoyant force, as follows:

F = Fb – Fg

Fb= δH20* 4/3*π*(d/2)³  * g

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Replacing by the values of the densities, and the ball diameter, we finally get:

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4 years ago
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