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A refrigeration remove 12 kJ of heat from a body when working between 24 K and 310 K if the coefficient of performance is 80% of the COP of Carnot refrigeration operating between the same limits, calculate: a) heat energy, b) power required.
steam is to be condensed in the condenser of a steam power plant at a temperature of 60degc with cooling water from a
i need the answer with calculating steps and details. assignment attached as a jpeg for reference
the link DE is 3mm thick and 25 mm width,determine the normal stress in the central portion of the link.
Refrigerant R-134a is compressed steadily and adiabatically in a reversible compressor. The volume flow rate entering the compressor is 800 ft3/min.
the gate in the is hinged at H.the gate is 2 m wide and normal to the palne of the diagram.calculate the force required to hold the gate closed.
The 50-lb load is hoisted by the pulley system and motor M. If the crate starts from rest and by constant acceleration attains a speed of 15 ft/s after rising s = 6 ft, determine the power that must be supplied to the motor at this instant.
A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
a roast is in an oven and weighs 2.25 kg. it is initially at 6 degrees celsius and needs to be heated to 80 degrees
1. a solid cube of copper with each side 1.0 ft is converted into metallic powders of spherical shape by water
Find the corresponding damping coefficient c. Identify the system parameters such as the natural frequency and damped frequency. Derive the mathematical expression of the displacement as a function of time with the given initial condition. Plot yo..
a 250-kg crate b is suspended from a cable attached to a 20-kg trolley a which rides on an inclined i-beam as shown.
What is the correct decimal notation for the number 1.345 x 10-1?
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