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mixas84 [53]
3 years ago
7

Ahmad was moving to the south with v= 10 km/hr ,and Mohammed was moving with half of Ahmad's speed to the North . Write the vect

or that represents Mohammed's speed as a magnitude and direction.
there is no answer choices?
Physics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

5 north

Explanation:

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The magnetic field at the center of a 1.0-cm-diameter loop is 2.5 mT.
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Answer:

(a) The current in the wire is 19.89 A

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Explanation:

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magnetic field, B = 2.5 mT

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radius of the wire, r = 0.5 cm = 0.005 m

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I = \frac{2Br}{\mu_0} \\\\I = \frac{2\times 2.5 \times 10^{-3} \times 0.005 }{4\pi \times 10^{-7} } \\\\I = 19.89 \ A

(b) The distance from the wire where the magnetic field is 2.5 mT is calculated as;

B = \frac{\mu_0 I}{2\pi d} \\\\where;\\\\d \ is \ the \ distance \ from \ the \  wire\\\\d = \frac{\mu_0 I}{2\pi B} = \frac{4 \pi \times 10^{-7} \times 19.89}{2\pi \times 2.5 \times 10^{-3}}  = 0.00159 \ m = 0.159 \ cm

6 0
3 years ago
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