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lilavasa [31]
1 year ago
12

At what temperature will aluminum have a resistivity that is three times the resistivity copper has at room temperature?

Physics
1 answer:
ipn [44]1 year ago
8 0

The temperature that the aluminum will have a resistivity that is three times the resistivity copper has at room temperature is 227°C.

<h3>How to calculate the temperature?</h3>

It should be noted that the temperature of resistivity is given as:

p(t) = p(20°C) (1 + (t - 20°C)

The resistivity at room temperature is illustrated as:

pCu(20°C) = 1.68 × 10^-8

pAl(20°C) = 2.65 × 10^-8

Therefore, the equation will be:

3 × 1.68 × 10^-8 = 2.65 × 10^-8(1 + 0.00435(t - 20°C)

0.902 = 0.00435(t - 20°C)

t = 20 + 207

t = 227°C

Therefore, the temperature is 227°C.

Learn more about temperature on:

brainly.com/question/24746268

#SPJ4

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A bottle lying on the windowsill falls off and takes 4.95 seconds to reach the ground. The distance from the windowsill to the g
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The distance an object falls from rest through gravity is

                         D  =  (1/2) (g) (t²)

            Distance  =  (1/2 acceleration of gravity) x (square of the falling time)

We want to see how the time will be affected
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So I'm going to start by rearranging the equation
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Multiply each side by  2 :         2 D  =            g    t² 

Divide each side by ' g ' :      2 D/g =                  t²

Square root each side:        t = √ (2D/g)


Looking at the equation now, we can see what happens
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-- ' g ' is in the denominator; so bigger 'g' ==> shorter 't'
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-- They don't change by the same factor, because  1/g  is inside
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Gravity on the surface of the moon is roughly  1/6  the value
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Answer:

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