3 years ago

Moving a magnet inside of a coil of wire will induce a voltage in the coil. How is the voltage in the coil increased?

Physics

1 answer:

Ymorist [56]3 years ago

4 0

The correct answer is A. Hope I helped

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1 year ago

At its widest point, the diameter of a bottlenose dolphin is 0.50 m. Bottlenose dolphins are particularly sleek, having a drag c

fiasKO [112]

Answer:

497.00977 N

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Explanation:

$\rho$ = Density of water = 1000 kg/m³

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r = Radius of bottlenose dolphin = 0.5/2 = 0.25 m

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$F_d=\frac{1}{2}\rho CAv^2\\\Rightarrow F_d=\frac{1}{2}\times 1000 \times 0.09(\pi 0.25^2)7.5^2\\\Rightarrow F_d=497.00977\ N$

The drag force on the dolphin's nose is 497.00977 N

at 20°C

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Reynold's Number

$Re=\frac{\rho vd}{\mu}\\\Rightarrow Re=\frac{1000\times 7.5\times 0.5}{1.002\times 10^{-3}}\\\Rightarrow Re=3742514.97005$

The Reynolds number is 3742514.97005

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3 years ago

Normally light waves move in all different directions. When light becomes P________, all of the electric fields in the waves mov

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