Some galaxy clusters have not finished forming and are still attracting new members today
Indicate whether the statement is true or false
TRUE
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Potential Energy: The figure shows an arrangement of two particles each having charge Q = -6.8 nC and each separated by 5.0 mm from a proton. If the two particles are held fixed at their locations and the proton is set into motion as shown, what is the minimum speed the proton needs to totally escape from these particles? (mproton = 1.67 × 10-27 kg, e = 1.60 × 10-19 C, k = 1/4??0 = 9.0 × 109 N ? m2/C2) 
A. 2.2 × 106 m/s B. 4.3 × 106 m/s C. 8.3 × 106 m/s D. 1.7 × 107 m/s
If the voltage between the plates of a parallel-plate capacitor is doubled, the charge on the capacitor
A) is tripled. B) is doubled. C) is halved. D) quadruples. E) remains the same.
A 2.00-kg mass oscillates on the end of a spring with spring constant 12.0 N/m. Its amplitude of oscillation decreases from 10.0 cm to 1.0 cm in 4.00 minutes. What is the linear damping coefficient of this oscillator?
A) 134 N?s/m B) 1.76 N?s/m C) 0.311 N?s/m D) 0.0384 N?s/m E) 0.622 N?s/m
For n = 6, what are the maximum orbital quantum number and the maximum orbital magnetic quantum number?
a. 7, 6 c. 6, 5 b. 5, 4 d. 5, 5