At what speed would a proton need to circle the Earth at a height ...

[cabate]

At what speed would a proton need to circle the Earth at a height of 1 000 km above the equator if the Earth's magnetic field is horizontal and directed north-south, with an intensity of 4.00  10-8 T? (The radius of the Earth is 6 400 km and the charge and mass of the proton are q = 1.60  10-19 C and mp = 1.67  10-27 kg. Ignore relativistic corrections.)

Question 2

A magnetic field of 2.00 T is applied to a bubble chamber to make the tracks of protons and other charged particles identifiable by the radius of the circles they move in. If a high-energy proton moves along an arc of a 3.30-m circle, what is the momentum of the proton? q = 1.60  10-19 C, m = 1.67  10-27 kg

[strudel15]

Answer to Question 1

2.84  107 m/s

Answer to Question 2

1.06 C 10-18 kg  m/s

[cabate]

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[strudel15]

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