Ice floats on water but iron nail sinks in it why give reason?

Physics

1 answer:

levacccp [35]3 years ago

4 0

Explanation:

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according to Newton's third law what is the equal and opposite force to the downward force of gravity pulling on a man standing

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When you're talking about gravity, it's easy to identify the equal
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Gravity ALWAYS produces an equal pair of opposite forces.
They both act between the centers of the two objects, one in
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Consider the equal pair of opposite gravitational forces between
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the center of the Earth. We call that force "your weight".
The other one acts on the Earth, and draws it toward the center
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A space vehicle approaches a space station in orbit. The intent of the engineers is to have the vehicle slowly approach, reducin

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Answer: The total momentum before the docking maneuver is $mV_{1}+MV_{2}$ and after the docking maneuver is $(m+M) U$

Explanation:

Linear momentum $p$ (generally just called momentum) is defined as mass in motion and is given by the following equation:

$p=m.v$

Where $m$ is the mass of the object and $v$ its velocity.

According to the conservation of momentum law:

"If two objects or bodies are in a closed system and both collide, the total momentum of these two objects before the collision $p_{i}$ will be the same as the total momentum of these same two objects after the collision $p_{f}$ ".