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Question: An 92% aluminium-8% copper alloy casting is made in a sand mold using a sand core that weighs 20kg. Determine the buoyancy force in Newton''s tending to lift the core during pouring.
a submarine is cruising in the ocean at a depth of 320 m. salt water has a specific gravity of 1.03. determine the
Suppose that a company has four jobs to be assigned to four workers. The costs, in dollars, of assigning these jobs to these workers are given in Table 5.5.21. Determine the assignment plan that minimizes the company's total cost.
two uninsulated rigid tanks contain air. initially tank a hold 1 lbm of air at 1440 degrees r and tank b has 2 lbm of
a stream of humid air containing 1.00 mole water vapor and the balance dry air is to be humidified to a water content
an insulated turbine is operating on nitrogen. the gas enters at 3.8 atm 170degc and expands to 1 atm. the isentropic
You have a bevel gear and shaft and you have to find the maximum load that can be applied on it.
during the construction of a highway by-pass earthmoving equipment costing 40000 was purchased for use in transporting
air at atmospheric pressure and with a mean velocity of 0.5 ms flows inside a thin walled square cross-section duct of
a circular sheet metal duct carries refrigerated air to a cold storage room for apples. the duct itself is 200 mm in
Why Centrifugal Pump is not called as a Positive Displacement Type of Pump?
For the process where q= 62.5 kj/kg and wkcs= 60 kj/kg determine the energy change if the system mass is 2 kg.
calculate the excited-state and ground-state population rations for HCI
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