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A small sphere of reference-grade iron with a specific heat of 447 J/kgK and a mass of 0.515 kg is suddenly immersed in a water-ice mixture. Fine thermocouple wires suspend the sphere and the temperature is observed to change from 15°C to 14°C in 6.35 s. The experiment is repeated with a metallic sphere of the same diameter, but unknown composition with a mass of 1.263 kg. If the same observed temperature change occurs in 4.59 s, what is the specific heat of the unknown material?
An unsuited free diver can work in a pressure of up to 490KN/m^2 and a suited diver in pressure of up to 1815 KN/m^2. Calculate the maximum depths at which they might work in sea-water which has a specific gravity of 1.03.
What is the mass flow rate of oxygen in lbm/s? Note that the inside diameter of a nominal 2 inch schedule 40 steel pipe is 2.067inches. Assume ideal gas principles apply.
A simple plate capacitor can store 6.5x10^-5 C at a potential of 10000 V. what dielectric constant must the material between the plates have if their area is 6.0x10^-5 m2 and they are 0.16 mm apart?
one kg of execute a carnot power cycle. during the isothermal expansion, the water is heated until is is a saturated vapor the pressure is and the quality is. evaluate the heat and work for each process.
Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.
At what location s will the combined moment of the weights of the man and platform about point B be zero?
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
Using the knon height and calculated base lenghth, what is the length of the slope of the ramp.
The spool has a mass of 75 kg and a radius of gyration . It rests on the inclined surface for which the coefficient of kinetic friction is . If the spool is released from rest and slips at A, determine the initial tension in the cord and the angul..
water contained in a closed, rigid tank, initially saturated vapor at 200C, is cooled to 100C. determine the initial and final pressure, each in bar. locate the initial and final states on a sketches of the p-v and T-v digrams.
Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.
Module FEA - FINITE ELEMENT ANALYSIS , Provide answers to all questions. Note that assignment part 2 carries 60% of the marks for the course.
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