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mars1129 [50]
3 years ago
14

a conducting rod moves perpendicularly through a uniform magnetic field. how does the emf change if both the velocity of the rod

and the length of the rod are doubled?
Physics
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

It increases by a factor of 4. (emf=Blv)

Explanation:

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Answer:

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because the law of conservation

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According to Coulomb’s Law, the force between two charged objects is related to _____. the distance separating them the mass of
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4 years ago
A loudspeaker having a diaphragm that vibrates at 910 Hz is traveling at 75.0 m/s directly toward a pair of holes in a very larg
Alina [70]

To solve this problem we need to apply doppler equation,

Our values are:

f_0 = 910Hz\\c = 75m\\v=344m/s\\\theta= 12.9\°\\

Doppler equation is given by,

f= \frac{v}{v-c} f_0

Substituting,

f= \frac{344}{344-75}*910

f = 1163Hz

\lambda = \frac{344}{1163}

Wavelenght is equal to,

\lambda = \frac{c}{f}

\lambda = 0.2956

We can now find the distance by,

d= \frac{1}{2}\frac{\lambda}{sin\theta}

d=\frac{1}{2}\frac{0.2956}{sin(12.9)}

d= 0.66m

b) We can find at what angles would sound first cancel through the same equation of wavelenght,

\lambda = \lambda{c}{f} = \frac{344}{1163}

d* sin\theta = \frac{1}{2}*\lambda

\theta = arcsin( 0.5*(344/1163)/0.66)=12.94\°

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3 years ago
Are fat fish more likely to have broad stripes than thin fish?
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