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Alenkinab [10]
3 years ago
14

What is the difference between speed and velocity?

Physics
1 answer:
alekssr [168]3 years ago
4 0
Speed does not include a direction, but velocity does.

       30 miles per hour north
and
       30 miles per hour west

Same speed.
Different velocity.
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A depiction of a famous scientific experiment is given. Consider how the beam changes when the magnet is off compared to when th
iogann1982 [59]

Answer:

The beam used is a negatively charged electron beam with a velocity of

v = E / B

Explanation:

After reading this long statement we can extract the data to work on the problem.

* They indicate that when the beam passes through the plates it deviates towards the positive plate, so the beam must be negative electrons.

* Now indicates that the electric field and the magnetic field are contracted and that the beam passes without deviating, so the electric and magnetic forces must be balanced

           F_{e} =  F_{m}

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this configuration is called speed selector

They ask us what type of beam was used.

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I think number 1 is incorrect I believe that answer is D. Number 6 I believe would be B. The rest seem to be correct.
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Assoli18 [71]
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An automobile of mass 2500 kg moving at 49.4 m/s is braked suddenly with a constant braking force of 8,868 N. How far does the c
BaLLatris [955]

Answer:

344.68 m

Explanation:

The computation of the far does the car travel before stopping is

Data provided in the question

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So,

accleration = a is

= \frac{-F}{m}\\\\\= \frac{8868}{2500}

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Based on the above information

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