Problem 4: Inputs: ● ● ● a = 6 m b = 1.5 m w = 4x+1.2x³ N/m Compute Ay. Indicate direction (up/down) along with your boxed answer. a w b

A jet plane taking off creates a noise with a magnitude of approximately 125 dB. What is the magnitude of the pressure disturbance (in Pa)?

SAE 30 oil is contained in a cylinder with inside diameter of 1 in. and length of 1 ft. What is the pressure required to decrease the volume of the oil by 2%?

Refer to Figure 7.24. The following data were collected during the field permeability measurement of a confined aquifer using a pumping test. Determine the hydraulic conductivity of the permeable layer. Use Eq. (7.49). Thickness of the aquifer, H = 4.5 m Piezometric level and radial distance of the first observation well: h1 = 2.9 m; r1 = 17.8 m Piezometric level and radial distance of the second observation well: h2 = 1.8 m; r2 = 8.1 m Rate of discharge from pumping, q = 0.5 m3/min