The Figure Shows an Arrangement of Two -4

question 4

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, m_proton = 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

Comprehend the importance and application of the time value of money in investment decisions.

Distinguish between different investment appraisal methods and their implications on financial decision-making.

Evaluate the significance of the payback period, internal rate of return (IRR), and net present value (NPV) in investment decisions.

Analyze the role of accounting rate of return (ARR) and how it differs from cash flow-based evaluation methods.

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