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4 years ago

The diagram shows light passing through and opening and forming bonds. Which two order bands are the dimmest?

Physics

2 answers:

myrzilka [38]4 years ago

8 0

The correct answer is (D) because I said it is lol, but fr i'm right!

Oxana [17]4 years ago

7 0

I think its option d
n=2 n=3

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3 years ago

A platinum resistance thermometer has a resistance of 11.50 ohms at 0 oC and 17.35 ohms at 100 oC. Assuming that the resistance

STatiana [176]

Answer:

$34.2^{\circ}C$

Explanation:

The resistance increases linearly with the temperature - so we can write:

$\Delta R = k \Delta T$

where

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In the first part of the problem, we have

$\Delta R = 17.35 - 11.50 =5.85\Omega$

$\Delta T = 100 -0 = 100^{\circ}C$

So the coefficient of proportionality is

$k=\frac{\Delta R}{\Delta T}=\frac{5.85}{100}=0.0585 \Omega ^{\circ}C^{-1}$

When the resistance is $R=13.50\Omega$ , the change in resistance with respect to the resistance at zero degrees is

$\Delta R' = 13.50-11.50 = 2.00 \Omega$

So we can find the change in temperature as:

$\Delta T' = \frac{\Delta R}{k}=\frac{2.00}{0.0585}=34.2^{\circ}$

So the new temperature is

$T_f = T_0 + \Delta T' = 0+34.2 = 34.2^{\circ}C$

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3 years ago

Three capacitors with capacitances:

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Answer:

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Explanation:

See attached file

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