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Ainat [17]
3 years ago
11

"Which particle builds a static electric charge when it is transferred from one object to another?

Physics
1 answer:
Anestetic [448]3 years ago
5 0
When two things rub against each other and become charged, it is
electrons that been rubbed off of one thing and on to the other one.

Protons would do that too if they got moved from one thing to another
by rubbing, but they don't.
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A particle of mass 10 g and charge 72 μC moves through a uniform magnetic field, in a region where the free-fall acceleration is
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Answer:

-0.07163\hat k\ T or 0.07163 T into the page

Explanation:

m = Mass of particle = 10 g

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Here the magnetic and gravitational forces on the particle are applied in the opposite direction so,

F_b=F_g

F_b=qvBsin\theta\\\Rightarrow F_b=qvBsin90\\\Rightarrow F_b=72\times 10^{-6}\times 19000B

F_g=ma\\\Rightarrow F_g=0.01\times -9.8

72\times 10^{-6}\times 19000B=0.01\times -9.8\\\Rightarrow B=\frac{0.01\times -9.8}{72\times 10^{-6}\times 19000}\\\Rightarrow B=-0.07163\hat k\ T

The magnetic field is 0.07163 T into the page

5 0
3 years ago
Which property increases as an electromagnetic waves energy decreases
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Answer:

Wavelength

Explanation:

3 0
3 years ago
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For a vehicle to negotiate a banked curve in poor weather conditions, where the force of friction f = 0, for a given velocity v
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Answer:

R=240m

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What’s the answer?hhhu
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