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2 years ago

During which segments is kinetic energy decreasing?

Physics

2 answers:

Burka [1]2 years ago

5 0

Answer:

please provide a link or pdf file to complete the assignment i will be more than happy to help. :D

Explanation:

SashulF [63]2 years ago

5 0

Answer:

The answer is C

Explanation:

According to the cooling curve, segments 1, 3, 5 show a decrease in kinetic energy. During these segments, the temperature decreases and, since temperature is measure of the average kinetic energy of molecules, the average kinetic energy decreases as well.

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The parallel axis theorem relates Icm, the moment of inertia of an object about an axis passing through its center of mass, to I

erma4kov [3.2K]

Answer:

Part a)

$I_{end} = \frac{mL^2}{3}$

Part b)

$I_{edge} = \frac{2ma^2}{3}$

Explanation:

As we know that by parallel axis theorem we will have

$I_p = I_{cm} + Md^2$

Part a)

here we know that for a stick the moment of inertia for an axis passing through its COM is given as

$I = \frac{mL^2}{12}$

now if we need to find the inertia from its end then we will have

$I_{end} = I_{cm} + Md^2$

$I_{end} = \frac{mL^2}{12} + m(\frac{L}{2})^2$

$I_{end} = \frac{mL^2}{3}$

Part b)

here we know that for a cube the moment of inertia for an axis passing through its COM is given as

$I = \frac{ma^2}{6}$

now if we need to find the inertia about an axis passing through its edge

$I_{edge} = I_{cm} + Md^2$

$I_{edge} = \frac{ma^2}{6} + m(\frac{a}{\sqrt2})^2$

$I_{edge} = \frac{2ma^2}{3}$

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3 years ago

The brain is most active during which portion each sleep cycle

s2008m [1.1K]

Its during REM sleep. hope this helped

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Explain Newton's third law in your own words.

Kazeer [188]

Newton's third law states "for every action, there is an equal and opposite reaction."

What this is pretty much saying is that for every action, there is a consequence. One force connects and triggers another.

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3 years ago

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What is larger a Atom or a Molecule?

Kipish [7]

I believe an Atom is a very powerful source, the basic unit of a chemical element. An atom is a source of nuclear energy.

But a molecule on the other hand isn't so different.
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I hope that helps, have a fantastic day!

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Gwar [14]

Answer:

Helium

Explanation:

Helium is the least reactive element, since it is a noble gas with the smallest amount of valence rings.

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3 years ago