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Water is boiled at sea level in a coffee maker equipped with an immersion-type electric heating element. The coffee maker contains 1 L of water when full. Once boiling starts, it is observed that half of the water in the coffee maker evaporates in 25 minutes. Determine the power rating of the electric heating element immersed in water. Also, determine how long it will take for this heater to raise the temperature of 1 L of cold water from 18°C to the boiling temperature.
A cylinder fitted with a piston containing 1 kg of refrigerant 134a at 20C and 90% vapor quality is attached to a line flowing refrigerant 134a. The total restraining force on the piston is proportional to the cylinder volume squared. The valve is no..
helium is used to operate an 18 hp gas turbine. the gas enters the steady-flow device at 220 fts through an area of
an airplane flies at a speed of 539 mph at an altitude of 10000 ft. if the boundary layers on the wing surfaces behave
10 kg of water in a piston cylinder exists as a saturated mixture at 120 kpa with quality 40. the water is now heated
thecoaster cars are lifted up the initial hill which has a height of 85 feet and released at the top of the hill with a
two kilograms of air within a piston-cylinder assembly executes a carnot power cycle with maximum and minimum
consider steady heat conduction in a plane wall whose left surface node 0 is maintained at 40 degrees c while the right
a metal hoop with a radius r6 in is released from rest on the 20 degress incline. if the coefficient of static and
a certain factory manufactures tin cans.it receive an order for 10000 cylindrical tin cans of height 5 inch and
draw a complete schematic diagram show arrows symbols amp numeric values for each w amp amp q amp . consider the steady
a walk-in cooler using a vapor compression refrigeration cycle is configured as shown below. the cycle uses cfc22 or
Air is expanded in a poly tropic process from a pressure and volume of 350 kPa and 0.03 m3 until its volume is increased by 6.667 times. The poly tropic process has an exponent n = 1.5
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