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3 years ago

What formula relates mass volume and density?

Physics

1 answer:

katovenus [111]3 years ago

8 0

The formula that relates the 3 variables, namely: mass, volume, and density is: Density = mass / volume.

Let us identify each variable:

Density - more accurately called the volumetric mass density of a substance is its mass per unit volume. It is a key concept that examines how materials communicate in a lot of things, i.e weather, material sciences, engineering, and other fields of science.

Mass – defined as a property of a physical body in Physics, and when a net force is applied, it results to the measure of a specific object’s resistance to acceleration.

Volume - contained or occupied by the space of a substance or shape (either by a solid, liquid, gas or plasma state)

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Answer:

$KE=1.3\times 10^{21}\ J$

$KE=3.1\times 10^{5}\ E$

Explanation:

(a)

Given:

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velocity of the comet, $v=2.5\times 10^4\ m.s^{-1}$

Now, the kinetic energy of the comet can be given by:

$KE=\frac{1}{2} m.v^2$

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(b)

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Now the kinetic energy of the comet in terms of energy of 1 megaton TNT:

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i.e.

$KE=3.1\times 10^{5}\ E$

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3 years ago

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3 years ago

A rock is dropped into the Grand Canyon. It takes 18 seconds to hit the bottom. Calculate how deep the canyon is.

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