Question

Asked May 8, 2019

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In a place where the earths magnetic field is 6.0x10^-5 t and points exactly horizontally due north, a hunter fires a bullet horizontally toward the northeast at a speed of 300 m/s, trying to hit an aardvark. Unfortunately, as the bullet moved down the barrel, it acquired a net electrical charge of +2.0 nC. What is the magnitude of the magnetic force on the bullet due to the earths magnetic field?

Step 1

The magnetic field of Earth is:

6.0 × 10^{-5} t

The velocity of the bullet is:

300 m/s

The charge on the bullet is:

+ 2.0 nC

= + 2.0 × 10^{-9} C

The figure represent the direction of each quantity.

Step 2

The expression for force acting on the charged particle in a magnetic field is:

Step 3

Substitute the values in the abov...

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