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Square metal plates having a total exposed area of 10.75 ft.2 are fastened together with rivets having a total exposed area of 15.5 in.2. The environment involves moisture and some salt. Consider two cases:
(1) iron plates with nickel-copper alloy rivets, and
(2) nickel-copper alloy plates with iron rivets.
(a) For each case, which metal will corrode?
(b) How do the rates of corrosion compare for the two cases?
(c) If half as many rivets were used, what influence would this have on the total rate of corrosion?
A hydraulic system is powered by a 9 kw motor and operates at 11 MPa. Assuming no losses, what is the flow rate through the system in units of m³/s?
1. what happens to the cutting and thrust force as tool rake angle and cutting speed are increased?2. how does the
Management practices differ, depending on the diversity within the organization. In this assignment, you will research the demographics for your area or city and apply those demographics to business operations.
Teresa measures the distance that a traverse system moves an object for a given computer-controlled input pulse. She makes 100 readings, and the mean value is 6.832 m with a sample standard deviation of 1.0 cm. The errors in the measurements are assu..
A power plant with one closed FWH has a con- denser temperature of 450C, a maximum pressure of 5 MPa, and a boiler exit temperature of 900C. Extraction steam at 1 MPa to the FWH condenses and is pumped up to the 5-MPa feed water line, where all the w..
A small sphere with mass 5.00.×10?7kg and charge +3.00?C is released from rest a distance of 0.550m above a large horizontal insulating sheet of charge that has uniform surface charge density ?=+8.00pC/m2.
determine the magnitude of its total accleration when (a) t=0 and (b) t=2 Whats the solution.
Many articles have been written on how to develop, understand, and evaluate a business case. Visit the Web sites for Tech Republic, CIO, or another IT magazine, and find an article that discusses business cases. Describe the article and what you l..
Determine the Fourier transform methods to determine the response of the following systems for the given input
an adiabatic gas turbine using helium has inlet conditions 5 mpa and 500degc and outlet conditions of 50 kpa and
a frictionless piston-cylinder contains argon which is initially at 25 deg. c with a volume of 2.2m3. the system is
A heat pump uses r134a as the refrigerant to keep a heated space at 20°c by pumping from a geothermal water source. Water from the geothermal source enters the evaporator (a heat exchanger) at 50°c and leaves at 40°c at a rate of 0.08 kg/s. The re..
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