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2 years ago

What is the mass of a baseball clocked moving at a speed of 105 mph or 46.9 m/s and wavelength 9.74 × 10-35m?

1 answer:

6 0

For this problem to be solved, we make use of the de Broglie formula which is written below as follows:

λ = h/mv
where h is 6.626×10⁻³⁴ J·s

9.74 × 10⁻³⁵ m = 6.626×10⁻³⁴ J·s/ (m)(46.9 m/s)
Solving for m,
<em>m = 0.145kg</em>

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Answer:

$1.138\times 10^{-3}V$

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where:

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$dt-$ is the variation of time

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$\Phi=NBA \ Cos \theta$

Where:

N- number of circular loops

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B-is the magnetic strength of the field.

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$\epsilon=-\frac{d(78.5398\times 10^{-3}NB \ Cos \theta)}{dt}\\\\=-(78.5398\times 10^{-3}N\ Cos \theta)}{\frac{dB}{dt}$

$\frac{dB}{dt}-$ =0.0250T/s is given as rate at which the magnetic field increases.

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$=-(78.5398\times 10^{-3} m^2 \times 6\ Cos 15 \textdegree)\times 0.0250T/s\\\\=1.138\times 10^{-3}V$

Hence, the induced emf is $1.138\times 10^{-3}V$

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Answer:

(A) As it moves farther and farther from Q, its speed will keep increasing.

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