An airplane needs to reach a velocity of 487 kmh to take, Ask an Expert

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Q. A proton (mass= 1.7×10-27 kg, charge= 1.6×10-19 C) travelling with speed 106 m/s enters a region of space containing a uniform magnetic field of 1.2 T.

What is the time t required for the proton to re-emerge into the field-free region?

Q. An airplane needs to reach a velocity of 487 km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary for the plane to take flight?

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