3 years ago

Which of the following statements is true?

Physics

2 answers:

Alecsey [184]3 years ago

7 0

Answer: B

Explanation:

likoan [24]3 years ago

4 0

Answer:

d.Energy as heat transferred into an object is determined by the amount of work done on the object.

Explanation:

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The next two questions refer to this situation: A rectangular loop with sides of length a= 1.00 cm and b= 2.70 cm is placed near

alisha [4.7K]

Answer:

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b) $-5.39 * 10^{-8}$ V, counterclockwise

Explanation:

a) $d\Phi = B.dA\\\\B_r = \frac{\mu_0I}{2\pi r}\\\\dA = b.dr\\\\\Phi = \int\limits^b_a {B.dA} = \int\limits^{a+d}_d {\frac{\mu_0I}{2\pi r}.b.dr} =\frac{\mu_0I}{2\pi }.b.ln(\frac{a+d}{d} )\\$

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Direction is into the page.

b) $emf = -d\Phi/dt = -\frac{\mu_0}{2\pi }.b.ln(\frac{a+d}{d}).(2.98t)= \\=-\frac{4\pi * 10^{-7}*0.027}{2\pi} ln(1.46/0.46)*2.98*2.90= -5.39 * 10^{-8} V$

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3 years ago

A sports car accelerates from rest to 27.8 m/s in 4.80 s. What magnitude force does the 66.0 kg driver experience during the acc

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4 years ago