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Vera_Pavlovna [14]
4 years ago
5

What device is used to measure air pressure?

Physics
2 answers:
user100 [1]4 years ago
5 0

Search on google. It will have the right answer


Snezhnost [94]4 years ago
4 0

Answer:

A <em><u>barometer </u></em>measures air pressure.

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A proton moving along the positive x-axis enters a uniform magnetic field which is directed along the
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Explanation: To find the answer we need to know more about the Lorentz magnetic force.

<h3>What is the Lorentz magnetic force acting on the proton?</h3>
  • Consider a proton of charge q moving with a velocity v in a magnetic field, then the Lorentz magnetic force exerted on the proton can be expressed as,

                                  F= q (v× B)

                               F= qvBsin\alpha  where, \alpha is the angle between v and B.

  • In the question, it is given that,

                                B=0.7 T\\q=1.5*10^{-19}C\\v= 3*10^{6}m/s.\\\alpha =90 degree.\\ because, from the question it is clear that the proton is moving along x axis and the magnetic field is along the y axis.

  • Thus, we can find the force acting on the proton as,

                      F=qvBsin\alpha =1.5*10^{-19}C*3*10^6 m/s*0.7T*sin (90)\\F=3.15*10^{-13}N

Thus, we can conclude that the Lorentz force acting on the proton will be 3.15×10^-13 N.

Learn more about the Lorentz magnetic force here:

brainly.com/question/28047923

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