The Figure Shows an Arrangement of Two -4

question 18

Multiple Choice

The figure shows an arrangement of two -4.5 nC charges, each separated by 5.0 mm from a proton. If the two negative charges are held fixed at their locations and the proton is given an initial velocity v as shown in the figure, what is the minimum initial speed v that the proton needs to totally escape from the negative charges? (k = 1/4πε0 = 8.99 × 10⁹ N ∙ m²/C², e = 1.60 × 10^-19 C, mproton = 1.67 x 10^-27 kg)

• A) 1.8 × 10⁶ m/s
• B) 3.5 × 10⁶ m/s
• C) 6.8 × 10⁶ m/s
• D) 1.4 × 10⁷ m/s

---

Definitions:

Anticipated

The expected occurrence or expectation of an event, often used in the context of financial forecasts or income.

Annually

Occurring once every year or relating to a period of one year.

Annually

Annually means once every year.

Investors

Individuals or institutions that allocate capital with the expectation of receiving financial returns, often involving the purchase of securities.