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A room is heated by a baseboard resistance heater. When the heat losses from the room on a winter day amount to 6500 kJ/h, the air temperature in the room remains constant even though the heater operates continuously. Determine the power rating of the heater, in kW.
If friction between the cars and the rails is neglected, what were the magnitude and the direction of the velecity of the cars after the collision?
Characteristics between Pre-historic and Egyptian architecture and Egyptian and west Asiatic Architecture
Calculate the minimum flow rate (m^3/hr) of river water needed to acheive pre cooling hot, pasteurized liquid prodcut assuming that 10% heat is lost to the surroundings during exchange and that the water temp after cooling should not exceed 25 deg..
A parachutist having a mass of 60kg is falling at 8m/s when the parachute is opened. Due to atmosphere drag, the deceleration equation is 60a=588.6-30v^2 in m/s^2.
The bottom of a rectangular flume is 5m above reference level. The depth of the water in the flume is 3m. The average velocity is 1.7m/s. Compute the hydraulic energy at the surface of the water and at the bottom of the flume.
The composite shown is to be twisted by applying a torque T at end A. Knowing that the modulus of rigidity is 77 GPa for the steel and 27 GPa for the aluminum, determine the largest angle through
A 12-in well is drilled through a confined aquifer of average thickness 80 ft. Two observation wells located 50 and 120 ft away register a difference in drawdown of 10 ft. The steady-state pumping rate is 1000 gpm
Assume that the design temperature and residence time have been established as 1300 degrees F and 0.6 seconds, respectively. The type of burner used in the process requires outside air at a mass ratio of 12:1 (air to fuel gas).
Assess the adequacy of this existing curve in light of the reconstruction design speed of 60 mi/h and, if the existing curve is inadequate, compute a satisfactory curve length.
A balloon is being inflated at the rate of 15m^3/min. At what rate is the diameter increasing after 5 min? Assume that the diameter is zero at time zero.
Define an Fe-C martensite. (b) Describe the following types of Fe-C martensites that occure in plain-carbon steels: (i) lath martensite, (ii) plate martensite. (c) Describe some of the characteristics of the Fe-C martensite
What will be the value of the vertical stress at this point immediately after the fill is placed, before any consolidation has occurred. What will it be after consolidation is completed.
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