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ira [324]
2 years ago
6

Làm thế mào để kiểm tra một lục ma sát trược

Physics
1 answer:
9966 [12]2 years ago
4 0
C I completed the same quiz
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Name three forces involved in brushing your teeth.
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Three forces involved in brushing your teeth are first push, then pull, then push.
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Look at the diagrams. Each model the arrangement of particles in a substance.
Kisachek [45]

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a

Explanation:

because it has  compact  molecules  

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A proton with a speed of 3.2 x 106 m/s is shot into a region between two plates that are separated by a distance of 0.23 m. As t
harina [27]

Answer:

<h2>The magnitude of the magnetic is 0.145 T</h2>

Explanation:

Given :

Speed of proton v = 3.2 \times 10^{6}\frac{m}{s}

Mass of proton m = 1.67 \times 10^{-27} Kg

The force on the proton in magnetic field is given by,

  F = q (v \times B)

  F = qvB \sin \theta

But \sin 90 = 1    (∵ Force is perpendicular to the velocity so \theta = 90)

  F = qvB

When particle enter in magnetic field at the angle of 90° so particle moves in circle

So force is given by,

  F = \frac{mv^{2} }{r}

Where r = radius but in our case 0.23 m, q = 1.6 \times 10^{-19} C

By comparing above two equation,

  B = \frac{mv}{qr}

  B = \frac{1.67 \times 10^{-27} \times 3.2 \times 10^{6}  }{1.6 \times 10^{-19} \times 0.23 }

  B = 0.145 T

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=what%20%5C%3A%20is%20%5C%3A%20refraction%20%5C%3A%20of%20%5C%3A%20light%20%5C%3A%20%20%7B%3F%7
topjm [15]

When light passes through one transparent medium to another transperent medium it bends and that beding of light is know as refraction of light !

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3 years ago
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Which of the following forms of energy must an object have if it is moving at a constant velocity?
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Answer:

Kinetic energy

Explanation:

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