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2 years ago

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Which of the following statements about the force on a charged particle due to a magnetic field are not valid?

1 answer:

Ratling [72]2 years ago

8 0

Answer:

this is from quizlet and is similar hope it helps.

Explanation:

Which of the following statements about the force on a charged particle due to a magnetic field are not valid?

Check all that apply.

a. It depends on the strength of the external magnetic field.

b. It depends on the particle's charge.

c. It depends on the particle's velocity.

d. It acts at right angles to the direction of the particle's motion.

e. None of the above; all of these statements are valid.

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an athlete whirls an 8.71 kg hammer tied to the end of a 1.5 m chain in a simple horizontal circle where you should ignore any v

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Answer:

T = 692.42 N

Explanation:

Given that,

Mass of hammer, m = 8.71 kg

Length of the chain to which an athlete whirls the hammer, r = 1.5 m

The angular sped of the hammer, $\omega=1.16\ rev/s=7.28\ rad/s$

We need to find the tension in the chain. The tension acting in the chain is balanced by the required centripetal force. It is given by the formula as follows :

$F=m\omega^2r\\\\=8.71\times (7.28)^2\times 1.5\\\\=692.42\ N$

So, the tension in the chain is 692.42 N.

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A force of 3,200 kg x m/s^2 (Newton’s) acts on a truck giving it an acceleration of 2 m/s^2. What is the mass of the truck ?

Ivan

Answer:

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2 years ago

A force, F1, of magnitude 2.0 N and directed due east is exerted on an object. A second force exerted on the object is F2 = 2.0

IgorLugansk [536]

Answer:

Magnitude of the force is

$F_3 = 2.83$

direction of the force is given as

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Explanation:

As we know that force is a vector quantity and in order to find the resultant of two or more forces we need to add them vectorialy

So here we have

$\vec F_1 + \vec F_2 + \vec F_3 = 0$

here we know that first force is of magnitude 2 N towards east

$\vec F_1 = 2 \hat i N$

second force is also of 2.0 N due North

$\vec F_2 = 2 \hat j$

now from above equation

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$\vec F_3 = -2\hat i - 2\hat j$

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$F_3 = \sqrt{2^2 + 2^2}$

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3 years ago

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