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il63 [147K]
3 years ago
15

Suppose you are sitting on a rotating stool holding a 2 kgmass

Physics
1 answer:
Aloiza [94]3 years ago
3 0

Answer:Increase

Explanation:

Given

You are holding 2 kg mass in each outstreched hand

If the masses are dropped then Moment of inertia will decease by 2mr^2

Where m=2 kg

r=length of stretched arm

Since angular momentum is conserved therefore decrease in Moment of inertia will result in increase of angular velocity

as I\omega=constant

I=Moment of inertia

\omega=angular velocity

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3 years ago
Is everyone in your class able to hear a quiet sound equally well?
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Answer:

No

Explanation:

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8 0
3 years ago
Which of the following statements is true?
kupik [55]

Answer:

2. The hydrogen atom has quantized energy levels.

Explanation:

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4 0
4 years ago
Suppose 1.4 mol of an ideal gas is taken from a volume of 2.5 m3 to a volume of 1.0 m3 via an isothermal compression at 27°C. (a
zysi [14]

Answer:

Part a)

Q = 3198 J

Part b)

It is compression of gas so this is energy transferred to the gas

Explanation:

Part a)

Energy transfer during compression of gas is same as the work done on the gas

In isothermal process work done is given by the equation

W = nRT ln(\frac{V_2}{V_1})

now we know that

n = 1.4 moles

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V_2 = 2.5 m^3

V_1 = 1 m^3

now we have

W = (1.4)(8.31)(300)(ln\frac{2.5}{1})

Q = 3198 J

Part b)

It is compression of gas so this is energy transferred to the gas

6 0
4 years ago
9. Rob Colley set a record in “pole-sitting" when he spent 42 days in a barrel at the
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Answer:

3 sec

Explanation:

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