2 years ago

What two systems of the human body perform functions similar to a plants epidermal cells and stomata

Biology

1 answer:

bagirrra123 [75]2 years ago

5 0

Answer:

it is the nervous system

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1 year ago

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1 year ago

A proton has a speed of 3.0 × 106 m/s in a direction perpendicular to a uniform magnetic field, and the proton moves in a circle

jeyben [28]

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The magnitude of the magnetic field is 0.156 T.

Explanation:

Given that,

Speed of a proton, $v=3\times 10^6\ m/s$

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$\dfrac{mv^2}{r}=qvB\sin\theta$

q is the charge on proton

Here, $\theta=90^{\circ}$

$\dfrac{mv^2}{r}=qvB\\\\B=\dfrac{mv}{qr}\\\\B=\dfrac{1.67\times 10^{-27}\times 3\times 10^6}{1.6\times 10^{-19}\times 0.2}\\\\B=0.156\ T$

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2 years ago