An oil with a viscocity of mu = 0.40 N-s/m^2 and density rho = 900 kg/m^3 flows in a horizontal pipe of diameter D = 0.20 m and length, L= 10m. The basic physics behind laminar fluid says that the flowrate Q, varies directly as the pressure drop, Delta p and the radius, r, raised to the 4^th power and inversely as the viscosity mu, and length of pipe L. The proportionality constant is pi/8 Write this as an equation. Determine the required pressure drop, Delta p in N/m^2 to produce a flowrate of Q = 2.0 times 10^-5 m^3/s. You completed your degree and just took a position earning $60,000 per year. You are determined to maintain your salary at a rate higher than the expected 3% inflation per year. What must your salary be 5 years from now to just maintain your standard of living? A factory machine produces a sound with an intensity of 2.0 times 10^-3 W/m^2. What would be the decibel rating if 5 of these machines occupied the same room? Does it exceed the dB level of 120 for a rock concert? dB = 10 log_10 (intensity/reference intensity) Use a reference intensity of 1 times 10^-12 W/m^2 which is the threshold of hearing. An oil with a viscocity of mu = 0.40 N-s/m^2 and density rho = 900 kg/m^3 flows in a horizontal pipe of diameter D = 0.20 m and length, L= 10m. The basic physics behind laminar fluid says that the flowrate Q, varies directly as the pressure drop, Delta p and the radius, r, raised to the 4^th power and inversely as the viscosity mu, and length of pipe L. The proportionality constant is pi/8 Write this as an equation. Determine the required pressure drop, Delta p in N/m^2 to produce a flowrate of Q = 2.0 times 10^-5 m^3/s. You completed your degree and just took a position earning $60,000 per year. You are determined to maintain your salary at a rate higher than the expected 3% inflation per year. What must your salary be 5 years from now to just maintain your standard of living? A factory machine produces a sound with an intensity of 2.0 times 10^-3 W/m^2. What would be the decibel rating if 5 of these machines occupied the same room? Does it exceed the dB level of 120 for a rock concert? dB = 10 log_10 (intensity/reference intensity) Use a reference intensity of 1 times 10^-12 W/m^2 which is the threshold of hearing