Question

Assume a charged object with a mass of 9.6 gram moves in the positive direction of the x- axis with a kinetic energy of 48 kJ. This object enters in a region of magnetic field of 1.2 mT. If the charge of this particle is +18 µC and the direction of the magnetic field is in the positive y-axis, calculate the magnitude and the direction of the magnetic force act on this object.

Select one:

a. 6.8x10^{-5} N, in the negative direction of the
z-axis.

b. 6.8x10^{-5} N, in the positive direction of the
z-axis.

c. 2.8x10^{-5} N, in the negative direction of the
z-axis.

d. 2.8x10^{-5} N, in the positive direction of the
z-axis.

Answer #1

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Select one:
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D. Not enough information to decide
THE ANSWER IS NOT D ACCORDING TO MY PROFESSOR. PLEASE
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