A proton moving at a speed of 3.8 *10⁶ m/s cuts across the lines of a magnetic field at an angle of 40°. The strength of the field is 0.25 *10^-⁴ T. What is the magnitude of the force acting on the proton? (q_p = 1.6 *10^-¹⁹ C) A) 1.4 *10^-¹⁷ N B) 2.3 * 10^-¹⁷ N C) 9.8 *10^-¹⁸ N D) 5.1 *10^-¹⁸ N

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The Answer of A proton moving at a speed of 3.8 *10⁶ m/s cuts across the lines of a magnetic field at an angle of 40°. The strength of the field is 0.25 *10^-⁴ T. What is the magnitude of the force acting on the proton? (q_p = 1.6 *10^-¹⁹ C) A) 1.4 *10^-¹⁷ N B) 2.3 * 10^-¹⁷ N C) 9.8 *10^-¹⁸ N D) 5.1 *10^-¹⁸ N

A Proton Moving at a Speed of 3