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Dima020 [189]
3 years ago
14

A van de Graaff generator accelerates electrons so that they have energies equivalent to that attained by falling through a pote

ntial difference if 150mV
Physics
1 answer:
Marat540 [252]3 years ago
4 0

Answer:

Hello your question is incomplete hence I will give you a general answer on how A van de Graaff generator works

answer :

If the electrons falls through a PD of 150mV the electron will gain energy of   150MeV

Explanation:

when a Van de Graff generator is used to accelerate an electron through a PD ( potential difference ) of any value the particle ( electron )  the electron will gain energy  ( eV )  which is is equivalent in value of the PD it accelerated through

hence if the electrons falls through a PD of 150mV the electron will gain energy of   150MeV

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A rocket sled accelerates from 10 m/s to 40 m/s in 2 seconds. What is the average acceleration of the sled?
Dafna11 [192]

Answer:

15m/s²

Explanation:

Given parameters:

Initial velocity  = 10m/s

Final velocity  = 40m/s

Time taken  = 2s

Unknown:

Average acceleration  = ?

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3 years ago
A traveling wave on a string can be described by the equation : y = (5.26 ~\text{m}) \cdot \sin \big( (1.65 ~\frac{\text{rad}}{\
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Answer:

  t = 1.77 s

Explanation:

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the speed of the wave is constant and is given by

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we substitute

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if we compare the terms of the two equations

 

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          λ = 2π / 1.65

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          T = 2π / 4.64

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we seek the speed of the wave

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Since this speed is constant, we use the uniformly moving ratios

          v = d / t

           t = d / v

           t = 5 / 2.82

           t = 1.77 s

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