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choli [55]
3 years ago
5

Whats the temperature -15°F in degrees Celsius?

Physics
2 answers:
goldenfox [79]3 years ago
7 0

Answer:

-26.1111

Explanation:

guajiro [1.7K]3 years ago
5 0

Hello!

The formula for converting Fahrenheit to Celsius can be written as follows:

C = \frac{(F-32)(5)}{9}

Now let’s insert the value provided for Fahrenheit:

C = \frac{((-15)-32)(5)}{9}

Now simplify the numerator:

C = \frac{(-235)}{9}

Now divide:

C = -26.111

We have now proven that -15 degrees Fahrenheit is equal to -26.111 degrees Celsius.

I hope this helps!

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A long, straight, horizontal wire carries a left-to-right current of 40 A. If the wire is placed in a uniform magnetic field of
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Answer:

4.5\times 10^{-5} T

Explanation:

We are given that

Current in wire=40 A

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We have to find the resultant magnitude of the magnetic field 29 cm above the wire and 29 cm below the wire.

According to Bio-Savart law, the magnetic field exerted by the wire at distance R is given by

B_{wire}=B_2=\frac{\mu_0I}{2\pi R}

We have R=29 cm=\frac{29}{100}=0.29 m

1 m=100 cm

Substitute the values in the given formula

B_2=\frac{4\pi\times 10^{-7}\times 40}{2\times \pi\times 0.29}=\frac{2\times 40\times 10^{-7}}{0.29}=2.76\times 10^{-5} T

The resultant magnetic field is given by

B=\sqrt{B^2_1+B^2_2}

Substitute the values then we get

B=\sqrt{(3.5\times 10^{-5})^2+(2.76\times 10^{-5})^2}

B=4.5\times 10^{-5} T

The resultant magnitude of magnetic field is same above and below the wire as it is at same distance.

The resultant magnitude of the magnetic field 29 cm below the wire=4.5\times 10^{-5} T

Hence, the resultant magnitude of the magnetic field 29 cm above  the wire=4.5\times 10^{-5} T

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Explanation:

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