Two equal charges Q are separated by a distance d. One of the charges is released and moves away from the other due to the force between them. When the moving charge is a distance 3d from the other charge, what is its kinetic energy?
What will be an ideal response?
Q2/6? ?Od
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A. 30.0 kW B. 75.0 kW C. 105 kW D. 135 kW E. 210 kW
Which would require the greater change in a satellite's orbital speed (8 km/s); slowing down so it crashes into Earth, or speeding up so it escapes Earth?
A) slowing down B) speeding up C) same each way D) need more information
A "GUT" (grand unified theory) refers to theories that ________
A) unify the electromagnetic and weak forces B) unify the strong force with the electromagnetic and weak forces C) unify gravity with the strong and weak forces D) unify all four forces together
Which of the following describes what will happen to a light ray incident on a glass-to-air boundary at greater than the critical angle?
a. partial reflection, total transmission b. total transmission c. total reflection d. partial reflection, partial transmission