A useful theoretical equation for computing the relation between pressure, velocity, and the altitude a steady flow of nearly in-viscid , nearly incompressible fluid is the Bernoulli relation, named after Daniel Bernoulli, who published a hydrodynamics textbook in 1738: 1 P. = p + pV? +pg Z Where: P. = stagnation pressure, p = pressure in moving fluid ,V = velocity, p = density, Z = altitude g = gravitional acceleratin

Using the information given in Table 10.4, determine the ratio of local pressure and density to sea-level values. Estimate the value of air density at the cruising altitude of most commercial airliners. Altitude (m) sealevel PPsealevel 0 (sea level) 1000 3000 5000 8000 10,000 12,000 14,000 15,000

In Chapter 12, we explained that the electric power consumption of various electrical components can be determined using the following power formula: P = VI = RI2 where P is power in watts, V is the voltage, I is the current in amps, and R is the resistance of the component in ohms. Plot the power consumption of an electrical component with a resistance of 145 ohms. Vary the value of the current from zero to 4 amps. Discuss and plot the change in power consumption as the function of current drawn through the component.