Critically analyse a common engineered product in terms of the materials used, the processes required to manufacture the product, and the historical context of the material leading to its present form

1. A first class lever in statistics equilibrium has a 75 Ib resistance force and a 20 Ib effort force. The lever's effort force is located 5.2 ft from the fulcrum. What's the actual mechanical advantage of the system? 2.

2. The device that varies incoming line pressure using centrif - ugal force is known as: a. vacuum modulator. b. reverse boost valve. c. governor. d. throttle valve.

You read a research study that concludes that the higher a student's self-esteem, the better he performs in school.

Refrigerant-134a is throttled from the saturated liquid state at 700 kPa to a pressure of 157.38 kPa. Determine the temperature drop during this process and the final specific volume of the refrigerant. The inlet enthalpy of R-134a is 88.

Air suspension in german cars

7. D7 A cylindrical brass rod having a minimum tensile strength of 450 MPa (65,000 psi), a ductility of at least 13%EL, and a final diameter of 12.7 mm (0.50 in.) is desired. Some brass stock of diameter 19.0 mm (0.75 in.

When an electrical signal travels through a conductive wire, it produces an electromagnetic (EM) field. Likewise, when an EM field encounters a conductive wire, it produces a proportional electrical current. A. True B. False

Liquid water enters an adiabatic piping system at 15°C at a rate of 8kg/s. If the water temperature rises by 0.2°C during flow due to friction, the rate of entropy generation in the pipe is?

What does stall mean?

A flow of 100 mgd is to be developed from a 190-mi^2 watershed. At the flow line the area's reservoir is estimated to cover 3900 acres. The annual rainfall is 40 in. the annual runoff is 14 in. and the annual evaporation is 49 in. 1.