Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A chip that is of length L = 5 mm on a side and thickness t = 1 mm is encased in a ceramic substrate, and its exposed surface is convectively cooled by a dielectric liquid for which h = 150 W/m2 · K and T8 = 20°C.
In the off-mode the chip is in thermal equilibrium with the coolant (Ti = T8). When the chip is energized, however, its temperature increases until a new steady-state is established. For purposes of analysis, the energized chip is characterized by uniform volumetric heating with q = 9 x 106 W/m3 · Assuming an infinite contact resistance between the chip and substrate and negligible conduction resistance within the chip, determine the steady-state chip temperature Tf' Following activation of the chip, how long does it take to come within 1°C of this temperature? The chip density and specific heat are p = 2000 kg/m3 and c = 700 J/kg · K, respectively.
a disk cam rotates at a constant speed of 300 rpm and drives a translating roller follower through a rise of 1.5 inches
a vessel of volume v 6 liters contains water along with its saturated vapor under a pressure of 40 atmospheric and a
a chemically reactive system contains the following species in the gas phase nh3 no no2 o2 and h2o. determine a
A 40 kg container is initially at rest and then is pushed by a hydraulic cylinder with a force (kN) = 160 - 10 s. The coefficient of friction between the container and the floor is .26. Give one reason why it may be quickest to use energy methods to ..
a garden hose attached with a nozzle is used to fill a 20-gal bucket. the inner diameter of the hose is 1 inch and it
Treat the locomotive as a particle and assume that the railroad tracks are rectilinear and horizontal.
In 1654 Otto von Guericke, inventor of the air pump gave a demonstration before the noblemen of the Holy Roman Empire in which two teams of eight horses could not pull apart two evacuated brass hemispheres.
propane gas enters a continuous adiabatic heat exchanger at 40degc and 250 kpa and exits at 240degc superheated steam
steam enters a turbine at 8 mpa 450oc at a rate of 15 kgs and a velocity of 100 ms it leaves as saturated vapor at 100
air undergoes a polytropic process in a piston-cylinder assemply from p1 14.7 lbfin2 t1 70 degrees f to p2
the water level of a tank on a building roof is 20m above the ground. a hose leads from tank bottom to the ground. the
A system consisting of 2 kg of water initially at 160 C, 10 bar undergoes an internally reversible, isothermal expansion during which there is an energy transfer by heat into the system of 2700 KJ. Determine the final pressure (in bar) and work (in K..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd