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sertanlavr [38]

3 years ago

11

Can someone write this question clearly and send it to me? Don't just say the answer. Draw and write clearly please

1 answer:

Pepsi [2]3 years ago

6 0

Explanation:

acceleration is weight*gravity

tension is the weight In Newtons

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Graphs are ____ of relationships.

sashaice [31]

Answer:

Diagrammatic representation

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A cheetah can go from a state of resting to running at 20 m/s in just two seconds what is the cheetah's average acceleration?

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3 years ago

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A piano tuner strikes a tuning fork at the same time he strikes a piano key with a note of a similar pitch. If he hears 3 beats

DaniilM [7]

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The frequency of the beats ... 3 Hz ... tells the piano tuner that
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3 years ago

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3 years ago

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0.16 mol of argon gas is admitted to an evacuated 70 cm^3 container at 30°C. The gas then undergoes an isothermal expansion to a

Semmy [17]

Answer:

The final pressure of the gas is 9.94 atm.

Explanation:

Given that,

Weight of argon = 0.16 mol

Initial volume = 70 cm³

Angle = 30°C

Final volume = 400 cm³

We need to calculate the initial pressure of gas

Using equation of ideal gas

$PV=nRT$

$P_{i}=\dfrac{nRT}{V}$

Where, P = pressure

R = gas constant

T = temperature

Put the value in the equation

$P_{i}=\dfrac{0.16\times8.314\times(30+273)}{70\times10^{-6}}$

$P_{i}=5.75\times10^{6}\ Pa$

$P_{i}=56.827\ atm$

We need to calculate the final temperature

Using relation pressure and volume

$P_{2}=\dfrac{P_{1}V_{1}}{V_{2}}$

$P_{2}=\dfrac{56.827\times70}{400}$

$P_{2}=9.94\ atm$

Hence, The final pressure of the gas is 9.94 atm.

3 0

3 years ago