Electrons flow in an electrical circuit by

A) being bumped by other electrons.
B) colliding with molecules.
C) interacting with an established electric field.
D) none of the above


Answer: C

Physics & Space Science

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A 0.20-kg mass is oscillating on a spring over a horizontal, frictionless surface. When it is at a displacement of 2.6 cm from equilibrium, it has a kinetic energy of 2.7 J and a spring potential energy of 2.2 J. What is the maximum speed of the mass during its oscillation?

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