Electrons in a Particle Beam Each Have a Kinetic Energy

question 81

Multiple Choice

Electrons in a particle beam each have a kinetic energy of 4.0 × 10−¹⁷ J.What is the magnitude of the electric field that will stop these electrons in a distance of 0.3 m? (e = 1.6 × 10−¹⁹ C)

• A)1.9E+3 N/C
• B)7.5E+3 N/C
• C)8.3E+2 N/C
• D)1.3E+3 N/C
• E)​6.3E+3 N/C

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