3 years ago

In your own words, explain what a field is in science. Use specific examples to support your explanation.

Physics

1 answer:

tresset_1 [31]3 years ago

4 0

Answer:

Field, In physics, a region in which each point is affected by a force.

Explanation:

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3 years ago

Sound will travel slowest through which medium?

SSSSS [86.1K]

The speed of sound depends on the medium in which it is transported.

Sound travels fastest through solids, slower through liquids and slowest through gases.

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4 years ago

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Show that the expression pRT has the same units as the pressure, and thus that the ideal gas law is dimensionally consistent.

Gemiola [76]

Answer and Explanation:

We have given the expression $\rho RT$

Dimension of $\rho =ML^{-3}$

Dimension of R which is gas constant $=ML^2T^{-2}\Theta ^{-1}M^{-1}$

Dimension of temperature T $\Theta ^{-1}$

And dimension of pressure $ML^{-1}T^{-2}$

Now combine dimension of $\rho RT$ $=ML^{-3}ML^2T^{-2}\Theta ^{-1}M^{-1}\Theta ^{-1}=ML^{-1}T^{-2}$

So the dimension of $\rho RT$ and dimension P is same so there unit will also be same

From ideal gas equation we know that $PV=nRT$

$P=\frac{n}{V}RT=\rho RT$

As the both P and $\rho RT$ has same dimension so they are dimensionally constant

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4 years ago

a student does 100 j of work on the handle of a bicycle pump. the pump does 40 j of work pushing the air into the tire. what is

nalin [4]

Answer:

40%

Explanation:

Student -> Pump = 100j

Pump -> Tire = 40j

Between the two, 60j of energy were lost.

Efficiency = 40/100 = 40%

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3 years ago

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Answer:

I don't understand?

Explanation:

Could you please elaborate?

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