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Katarina [22]
3 years ago
13

Why do the north poles of these two magnets repel each other?

Physics
1 answer:
vaieri [72.5K]3 years ago
3 0

Answer:

The answer is C

Explanation:

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Compared to microwaves, ultraviolet waves have ___________________________ frequency.
vampirchik [111]
I think its a higher frequency
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3 years ago
Given a force of 88 N and an acceleration of 4 m/s2, what is the mass?
WARRIOR [948]
Newton's second law of motion says:

Force = (mass) x (acceleration)

88 = (mass) x (4)

Divide each side by 4 :

Mass = 22 kg.
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4 years ago
The force of a body is equal to mass x acceleration measured in newton which is the same as-
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Which graph below represents how the velocity of the sphere changes over time when falling with constant acceleration?
Amiraneli [1.4K]

Graph B represents the velocity of the sphere changes over time when falling with constant acceleration.

  • Acceleration is the measure of how quickly a body's velocity varies with regard to time, and constant acceleration occurs when a body's velocity changes proportionately over a period of time, or at a constant rate. It measures in m/s2.
  • It is claimed that a body has continual positive acceleration when it begins to move with an initial velocity of zero and gradually increases to a positive value over time.
  • Constant positive acceleration is demonstrated by a ball falling freely in a vertical direction.

To know more about  constant acceleration. visit : brainly.com/question/9754169

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4 0
1 year ago
The cyclotron frequency is the number of revolutions the particle makes in one second. calculate the cyclotron frequency for thi
Roman55 [17]

Answer:

f=qB/2\pim

Explanation:

The cyclotron frequency is the number of revolutions the particle makes in one second. calculate the cyclotron frequency for this particle

solution

The Lorentz force  F_{lorentz} =F_{centripetal}

is the centripetal force  

and makes the particles path to revolve in a circle:

qvB=mv^2/r

radius=r

m=mas of the particle

B=magnetic flux

q=quantity of charge

v=velocity of the particle

v=qBr/m

where v is the velocity of the particle

recall the velocity v=rω

v=2*Pi*f*r

2\pi *f*r=qBr/m

f=qB/2\pim

the cyclotron frequency is therefore f=qB/2\pim

the period(the time it take to make a complete oscillation) will be the inverse of frequency

T=2\pim/qB

4 0
3 years ago
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