Refer to Problem 25 of Chapter 4. Use the function file created for that problem to generate a surface mesh plot and a contour plot of x versus h and W for 0 ≤ W ≤ 500 N and for 0 ≤ h ≤ 2 m. Use the values k₁ = 10⁴ N/m, k₂ = 1.5 × 10⁴ N/m, and d = 0.1 m.

Problem 25

Figure P25 is a representation of an electrical system with a power supply and a load. The power supply produces the fixed voltage υ₁ and supplies the current i₁ required by the load, whose voltage drop is υ₂. The current voltage relationship for a specific load is found from experiments to be

 

Suppose that the supply resistance is R₁ = 30Ω and the supply voltage is υ₁ = 15 V. To select or design an adequate power supply, we need to determine how much current will be drawn from the power supply when this load is attached. Find the voltage drop υ₂ as well.

Figure P25

i = 0.16(e0.120, 1)