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The formula for the coefficient of performance 'COP' for air standard refrigeration cycle when we use cold air properties is not given in the text.
A CPVA is attached to the crankshaft driven by a three-cylinder four-stroke engine which produces a maximum primary torque oscillation of magnitude T0 = 30 Nm.
By modelling the joists as independent simply supported beams, determine the minimum depth of a joist needed to support a 100 kg person without deflecting more than 20 mm at any point.
The motion of the slender 10kg rod AB is guided by collars of negligible mass that slide freely on the vertical and horizontal rods. knowing that the bar is released from rest when θ=30, determi
The flat bar shown in sketch g is made of cold-drawn, high carbon steel (AISI 1080). The cyclic, nonzero, mean axial load variation is from a minimum of 2kN to a maximum of 10kN. Using the m
Having some trouble solving this question. If anyone can help it would be great! XYZ Company is considering purchasing an asset for $100,000 that has a 5-year useful life and a $20,000 salvage va
A dry bearing, of width 25 mm, supports a horizontal shaft of 35mm diameter that rotates at 10 r.p.m. The load on the bearing is a steady one of 1000 N.
One hundred moles per minute of a 50 mol% n-hexane/50 mol% n-pentane liquid mixture at 85 oC and 6 atm is fed to an evaporator.
A long wire of diameter D = 1mm is submerged in an oil bath of temperature T∞ = 25°C. The wire has an electrical resistance per unit length of R'e = 0.01 ?/m.
The probability that the student answers correctly on the second try given that he answered incorrectly on the first try is 0.3. Find the probability that the student answers the question on the first
A viscous incompressible newtonian fluid flows down a vertical wall. the liquid is exposed to atmospheric pressure and the liquid film thickness h is constant.
Mechanical engineering questions ,statics ,propability,weibull chart requiring> I need help in those field please, there are some questions related to the probability.
Determine the normal reactions on both the car's front and rear wheels and the trailer's wheel if the driver applies the car's rear brakes C and causes the car to skid.
A gate is 0.5 m wide and 0.6 m tall, and is hinged at the bottom. On one side the gate holds back a 0.5-m deep body of water. On the other side, a 10-cm diameter water jet hits the gate at a
A tensile specimen of cartridge brass sheet has a cross section of 0.320 in. × 0.120 in. and a gage length of 2.00 in. Calculate the engineering strain that occurred during a test if the distanc
What would be the wire diameter of the torsion spring made of oil temperd steel with arm length of 100mm,load from axis of spring 75 mm,load 75kgs,coil diameter 22mm,no.of coil any.
In an ideal vapor compression refrigeration cycle using R-134a, the adiabatic capillary tube drops the pressure from 1.4 MPa to the evaporate level. Its inlet is saturated liquid.
Determine the entropy production in each component. Assume a boundary temperature of 50°F on the cold side and Thigh on the hot side. Note that if each component is possible, then the
A 10-cm outside diameter by 6-cm inside diameter steam line made of steel (k=14 W/m c) delivers superheated steam at 1000 C. the line is wrapped with 10 cm of insulation (k=0.16 W/m C) .
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 2
What radius of sphere will give the most volume of ice cream inside the cone (as opposed to above the cone) for a cone of base angle 30 degrees? What percent of this sphere of most volume lies in
A medium grade fuel oil, relative density 0.861, is to be pumped up to a storage tank. the level of oil in the tank is 24.38 m above the pump. the gauge pressure at the pump inlet is 13.79 kPa and the
Starting from rest the motorboat travels around the circular path, p=50 m at a speed v=(0.8t) m/s where t is in seconds. Determine the magnitudes of the boat's velocity and acceleration when it has tr
Vector r makes angle of 30 degree with x- axis, and 70 degree with y-axis,and it is in the positive octant. vector s makes angle of 45 degree with x-axis , and 60 degree with y-axis , and it
A small oxygen cylinder is being filled from a much larger tank. The initial temperature and pressure of the small cylinder are 300 k and 10 bar, respectively.