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VladimirAG [237]
3 years ago
5

1. Identify the quantity through the use of fundamental dimensions. nRT where: n = amount [mol] R = ideal gas constant [atm L/(m

ol K)] T = temperature [K] Choose from the following: Energy Correct! Press enter after select an option to check the answer Power Press enter after select an option to check the answer Velocity Press enter after select an option to check the answer Acceleration Press enter after select an option to check the answer Pressure Press enter after select an option to check the answer Force
Physics
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

Energy

Explanation:

The easiest way would be to remember that PV=nRT and doing fundamental dimensions on that equation:[nRT]=[PV]=[P][V]=ML^{-1}T^{-2}L^3=ML^2T^{-2}, so the answer is Energy.

This is because we have to remember that P=F/A, and F has dimensions of mass (M) and acceleration (L/T^{-2}) while A has dimensions of longitude squared (L^{2}), which gives [P]=ML^{-1}T^{-2}. Volume has dimensions of L^{3}.

We can use any energy formula to know its dimensions, for example, from the Kinetic Energy we know that it must has dimensions of mass and velocity squared, [E]=ML^2T^{-2}, which is what we got.

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Answer:

3 times louder

Explanation:

The Loudness in decibel Db  L = 10㏒(I/I₀)  where I = sound intensity level and I₀ = threshold of hearing = 10⁻¹² W/m².

Now, for Jessica, I₁ = sound intensity level of Jessica's music = 10⁻⁹

and I₂ = sound intensity level of Braylee's music = 10⁻³

So, substituting the variables into the equation, we have

L₁ = 10㏒(I₁/I₀)

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Now, for Braylee, I₂ = sound intensity level of Braylee's music = 10⁻³

So, substituting the variables into the equation, we have

L₂ = 10㏒(I₁/I₀)

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So, Braylee's music is 3 times louder than Jessica's music

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2 years ago
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Answer:

-100N

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The action and reaction forces are equal in size/magnitude but opposite in direction. In this case where a tennis racket strikes a tennis ball with a force (action force) of 100N, the ball will strike the racket with a reaction force of -100N.

F(RB) = -F(BR)

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b

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<h3>Follow me for more answer.</h3>
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