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Sunny_sXe [5.5K]
3 years ago
7

Assume that a uniform magnetic field is directed into thispage. If an electron is released with an initial velocity directedfrom

the bottom edge to the top edge of the page, which of thefollowing describes the direction of the resultant force acting onthe electron?
A. out of the page
B. to the right
C. to the left
D. into the page
Physics
1 answer:
Feliz [49]3 years ago
7 0

Answer:

B). to the right

Explanation:

Since the direction of magnetic field is into the page

So here we know that

B = B_o(-\hat k)

now the velocity is from bottom to top

so we have

v = v_o \hat j

now the force on the moving charge is given as

\vec F = q(\vec v \times \vec B)

now we have

\vec F = (-e)(v_o \hat j \times B_o(-\hat k))

\vec F = e v_o B \hat i

so force will be towards Right

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A 0.15 kg ball is moving with a velocity of<br> 35 m/s. Find the momentum of the ball.
GarryVolchara [31]

Answer:

<h2>5.25 kg.m/s</h2>

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 0.15 × 35

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<h3>5.25 kg.m/s</h3>

Hope this helps you

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When a wave is absorbed by a medium, its energy is transferred to the medium. The energy is most often transformed into thermal
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Answer:

TEMPERATURE

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4 0
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1.
drek231 [11]

Answer:

2500m

Explanation:

given,

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time = 1000 secs

distance(s)=?

now,

s=( u+v ) ×t /2

=(5+0)×1000/2

=2500 m

hence, he /she travels 2500m far

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The focus of counterinsurgency (coin) operations generally progresses through three stages. which stage concerns itself with exp
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The term counter-insurgency refers to the actions (political and military) that aims in targeting the activities the revolutionaries. This operation consists of three stages. The stage that focuses on the expansion of stability operations onto the opposed regions by utilizing host nation forces belongs to the middle stage. Answer is C.
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