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A small truck is to be driven down a 4% grade at 70mi/hr. The coefficient of road adhesion is 0.95, and it is known that the baking efficiency is 80% when the truck is empty and decreases by one percentage point for every 100 lb of cargo added. Ignoring aerodynamic resistance, if the driver wants the truck to be able to achieve a minimum theoretical stopping distance of 275 ft from the point of brake application, what is the maximum amount of cargo (in pounds) that can be carried.
Determine the major and minor principal stresses at failure and the effective stress friction angle (assume c' = 0). Plot the Mohr diagram.
The motor-generators installed with these pump-turbines have an efficiency of 0.85 when operating as motors and 0.91 when operating as generators. Each pump-turbine uses its own 100-m-long, 150-cm steel penstock.
Write the unit of measurement and unit of payment of following items. 1) Earthwork in excavation in foundation. 2) Framwork. 3) Steelwork in trusses. 4) Damp proof course D.P.C. 5) Cement.
Determine the elastic and plastic section modulus of the I-beam. The axis runs through the center of the beam on both x and y axis (completely symmetrical). Beam properties: h= 12inches tf= 0.5 inches bf= 6 inches tw= 0.25 inches
Body A and body B are connected by an inextensible cord. If both bodies are released simultaneously from rest, what distance do they move in 3 sec and what is the tension in the cord. The weight of A is 50 lb and the weight of B is 10 lb.
A rectangular channel is 25ft wide and has a flow of 500 cfs at a velocity of 5ft/s. (a) Determine the specifc energy of water in the channel. (b) What is the criticl depth of water in the channel (c) What is the critical velocity
Assuming that the nozzle is well insulated and operating at steady state and that the air behaves as an ideal gas, calculate (a) the mass flow rate of air in kg/s, (b) the exit area of the nozzle in m^2,
Draw a picture of a typical strain gauge and point out the major components. Give a short explanation on the principal behind how a strain gauge works.
A reverse osmosis plant desalinates 5X10^6 L/day of feedwater containing 1500 mg/L of salts, yielding 3X10^6 L/day of product water with 75 mg?l of salt. What would the salt concentration be in the brine?
Consider your cooking gas contains 80% propane and 20% butane. While burning on a cooktop, assume it burns with 200% excess air. If no heat is lost, determine the maximum possible flame temperature.
Force F with magnitude indicated acts at point o. determine the magnitudes of the components Faa and Fbb along directions a-a and b-b so that F=Faa+Fbb
Determine the corresponding error in the computed discharge
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