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3 years ago

A charged particle is projected with its initial velocity parallel to a uniform magnetic field. What is the resulting path

Physics

1 answer:

Amiraneli [1.4K]3 years ago

4 0

Answer:

The particle will continue in a straight line parallel to the field

Explanation:

If a charged particle moves parallel to a magnetic field, without cutting across the field, then there will be no force on the particle. Since there is no force on the charged particle from the magnetic field, its velocity will continue in its original path, which is parallel to the field.

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A 1423-kg car is moving along a level highway with a speed of 26.4 m/s. The driver takes the foot off the accelerator and the ca

Leona [35]

Answer:

Final speed, v = 28.81 m/s

Explanation:

Given that,

Mass of the car, m = 1423 kg

Initial speed of the car, u = 26.4 m/s

Force experience by the car, F = 901 N

Distance, d = 106 m

To find,

The speed of the car after traveling this distance.

Solution,

The force experienced by a car is equal to the product of mass and acceleration.

$F=ma$

$a=\dfrac{F}{m}$

$a=\dfrac{901}{1423}$

$a=0.63\ m/s^2$

Let v is the final speed of the car. Using third equation of motion to find it as :

$v^2-u^2=2ad$

$v^2=2ad+u^2$

$v^2=2\times 0.63\times 106+(26.4)^2$

v = 28.81 m/s

So, the final speed of the car is 28.81 m/s.

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4 years ago

A red blood cell contains 4.8 107 free electrons. What is the total charge of these electrons in the red blood cell?

tatuchka [14]

Answer:

Charge, $q=7.68\times 10^{-12}\ C$

Explanation:

It is given that,

The number of electron in a RBCs, $n=4.8\times 10^7$

We need to find the total charge of these electrons in the red blood cell. Let it is q. Using the quantization of charge as follows :

q = ne

e is the change on electron

$q=4.8\times 10^7\times 1.6\times 10^{-19}\\\\q=7.68\times 10^{-12}\ C$

So, the net charge is $7.68\times 10^{-12}\ C$ .

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3 years ago

High pressure system the air moves (up/down) and brings (good/bad) weather

satela [25.4K]

Answer:

high pressure system in the air moves up and brings good weather

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maria [59]

D is the answer............

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4 years ago

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In the bottom of death valley, you will find layers of gravel deposited by rivers. based on materials presented in class, what i

nikklg [1K]

In the bottom of death valley, you will find layers of gravel deposited by rivers. based on materials presented in class, the explanation for this occurrence of river gravels in the valley bottom is that the valley was dropped relative to the mountains by faulting, and rivers now are carrying gravels down from the mountains into the valley and depositing the gravels at the valley bottom.

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3 years ago