Another magnetic freild question can soemone help me

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The discussion centers on calculating the speed of a proton moving eastward in Earth's magnetic field, which points north with a magnitude of 5.0 x 10^-5 T. A participant initially calculated the speed as 0.002 m/s but found it incorrect. The weight of the proton is noted as 1.67 x 10^-27 kg, and there is confusion regarding the correct calculation of the magnetic force and its relation to the proton's weight. Participants are encouraged to equate the magnetic force to the weight to find the correct speed. The thread highlights the need for clarity in applying physics principles to solve the problem accurately.
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A proton moves eastward in the plane of Earth's magnetic equator so that its distance from the ground remains constant. What is the speed of the proton if Earth's magnetic field points north and has a magnitude of 5.0 10-5 T?

i got .002 m/s but it was wrong
 
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kevinlikesphysics said:
A proton moves eastward in the plane of Earth's magnetic equator so that its distance from the ground remains constant. What is the speed of the proton if Earth's magnetic field points north and has a magnitude of 5.0 10-5 T?

i got .002 m/s but it was wrong
What is the weight of the Proton? What is the expression for magnetic force as a function of the proton's speed? Equate those two forces.

AM
 
the weight of the proton is 1.67e-27 but i still get the wrong answer i got 2.04e-4 can you work it out for me?
 
kevinlikesphysics said:
the weight of the proton is 1.67e-27 but i still get the wrong answer i got 2.04e-4 can you work it out for me?
That is the mass of the proton (in kg). What is the weight? (ie. the downward force on the proton).

AM
 

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