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


Answer: A

Physics & Space Science

You might also like to view...

What evidence suggests that Mercury contracted within about a billion years after it formed?

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

What is the "water hole"? Why is it so promising to radio astronomers?

What will be an ideal response?

Physics & Space Science

Which of the following is true about Bragg planes?

a. There is only one Bragg plane for any given crystal structure. b. They are especially useful for detecting transitions between energy levels in the crystals' atoms. c. They are used to scatter alpha particles in gold and other materials. d. They are evenly spaced planes within crystal structures of atoms. e. All of the above.

Physics & Space Science

The darkness of the night sky in an infinite universe is addressed in

A) Steady State Physics. B) the Cosmological principle. C) General Relativity. D) Special Relativity. E) Olbers's paradox.

Physics & Space Science