3 years ago

Show the correctness of v=fx

Physics

1 answer:

skad [1K]3 years ago

7 0

The answer for the question I believe isF=v/x

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An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 degrees Celsius a

avanturin [10]

Answer:

1751399.8902 J

Explanation:

m = Mass of water = 74.6 kg

$\Delta H_f$ = Latent heat of fusion = $3.34\times 10^5\ J/kg$

$T_h$ = 19.2°C

$T_c$ = 0°C

We have the equation for cold body

$Q_c=m\Delta H_f$

We have the equation

$\dfrac{Q_c}{Q_h}=\dfrac{T_c}{T_h}\\\Rightarrow Q_h=\dfrac{Q_cT_h}{T_c}\\\Rightarrow Q_h=\dfrac{m\Delta H_fT_h}{T_c}\\\Rightarrow Q_h=\dfrac{74.6\times 3.34\times 10^5\times (19.2+273.15)}{0+273.15}\\\Rightarrow Q_h=26667799.8902\ J$

Energy rejected to the room is 26667799.8902 J

Energy supplied to the device is given by

$E=Q_h-m\Delta H_f\\\Rightarrow E=26667799.8902-74.6\times 3.34\times 10^5\\\Rightarrow E=1751399.8902\ J$

The energy supplied to the device is 1751399.8902 J

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3 years ago

In this case, lithium would be classified as a(n)<br><br>A)atom.B)compound.C)ion.D)molecule.

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handle, trigger, spindle

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Does the water stay at the same speed all the way down the mountain from the reservoir ? If not, why not? please answer

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Answer:

Explanation:

Because the lower part of the water is at lower speed since it is where most aquatic animals live

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2 years ago

Show the correctness of v=fx​

Show the correctness of v=fx