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3 years ago

5

As temperature increases, what happens to the density of ocean water? A. changes unpredictably B. decreases C. does not change D

. increases

1 answer:

Lelu [443]3 years ago

4 0

As the temperature of water increases, the density of water will decrease.

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Protons and neutrons in the nucleus are held together by what

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They are held together because of Strong Nuclear Force.

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What factors contribute to global winds

serg [7]

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3 years ago

The kinetic energy of a rotating body is generally written as K=12Iω2, where I is the moment of inertia. Find the moment of iner

stira [4]

Answer:

See explanation

Explanation:

We have a mass $m$ revolving around an axis with an angular speed $\omega$ , the distance from the axis is $r$ . We are given:

$\omega = 10 [rad/s]\\r=0.5 [m]\\m=13[Kg]$

and also the formula which states that the kinetic rotational energy of a body is:

$K =\frac{1}{2}I\omega^2$ .

Now we use the kinetic energy formula

$K =\frac{1}{2}mv^2$

where $v$ is the tangential velocity of the particle. Tangential velocity is related to angular velocity by:

$v=\omega r$

After replacing in the previous equation we get:

$K =\frac{1}{2}m(\omega r)^2$

now we have the following:

$K =\frac{1}{2}m(\omega r)^2 =\frac{1}{2}Iw^2$

therefore:

$mr^2=I$

then the moment of inertia will be:

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3 0

3 years ago

HELPPP IM DESPERATE

damaskus [11]

the first one cuz I know

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Compare the forces in a small nucleus to the forces in a large nucleus

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