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A 4mx5mx6m room is to be heated by a baseboard resistance heater. It is desired that the resistance heater be able to raise the air temperature in the room from 7 to 23oC within 15 min. Assuming no heat losses from the room and an atmospheric pressure of 100 kPa, determine the required power of the resistance heater. Assume constant specific heats at room temperature.
a vat holds 2.25103 kg of a 22.0 solution of ethylene glycol and water. how much must be drained from the tank and
determine the smallest allowable value of the coefficient of static friction between the collar and the rod if the collar is not to slide when a) a =15° b)a = 45°. Indicate for each case the direction of the impending motion.
natural gas at 70 f and standard atmospheric pressure of 14.7 psi is compressed isentropically to a new absolute
wetting of some metallic surfaces can be inhibited by means of ion implantation of the surface prior to its use thereby
Evaluate the shearing and normal stresses at points H and J located at the ends of the horizontal and vertical diameters of transverse section located 2.5 in. to the left of bearing B.
a gold processor has three mines of gold ore mine a mine b and mine c. in order to keep his plant running at least 200
a closed rigid tank contains 5 lbm of a two phase mixture of water initially at 260degf with a quality of 0.6. heat
an electric motor operating at steady state draws a current of 10amps with a voltage of 220v. the output shaft power
Also find out a compression ratio and inlet pressure to give maximum imep. engineering fundamentals of internal combustion enignes - pulkrabek.
A satellite is in Earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. What is the semi-major axis of the orbit? b. What is the eccentricity? c. If the true anomaly is 160 degrees, what is the satellite's ..
explain temperature change (not conversion) is calculated from Celcius to Fahrenheit to Kelvin.
a four-cylinder four-stroke 2.8-liter compression-ignition engine operates on the ideal dual cycle with a compression
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