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A refrigerator door has a height and width of H = 1 m and W = 0.65 m, respectively, and is situated in a large room for which the air and walls
A plane wall of a furnace is fabricated from plain carbon steel (k = 60 W/m · K, p = 7850 kg/m3, c = 430 J/kg · K) and is of thickness L = 10 mm.
A plane wal1 of thickness 0.6 m (L = 0.3 m) is made of steel (k = 30 W/m · K. p = 7900 kg/m3, c = 640 J/kg · K). It is initially at a uniform temperature
A nickel-coated heater element with a thickness of 15 mm and a thermal conductivity of 50W/m · K is exposed to saturated water at atmospheric pressure.
A nuclear fuel element of thickness 2L is covered with a steel cladding of thickness b. Heat generated within the nuclear fuel at a rate q is removed by a fluid
A novel scheme for dissipating heat from the chips of a multichip array involves machining coolant channels in the ceramic substrate
A novel scheme for cooling computer chips uses a thermosyphon containing a saturated fluorocarbon. The chip is brazed to the bottom of a cuplike container
A novel heat exchanger concept consists of a large number of extruded polypropylene sheets (k = 0.17 W/m · K), each having a fin-like geometry
A novel design for a condenser consists of a tube of thermal conductivity 200W/m · K with longitudinal fins snugly fitted into a larger tube.
What is the chargeable weight for an ocean shipment that is 1.2m x 1.2m x 2m weighing 850 kgs?
A randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication.
What is annual incidence rate stroke in men? incidence rate=______per 1000 person year.
What is the work done by the gas during this process? What is the change in thermal energy of the gas?
You are holding a 6-kg dumbbell straight out at arm's length. Assuming your arm is 0.70 m long, what torque is the dumbbell exerting on your shoulder?
A clock (with hands) is flat on your desk. What direction is the rotational velocity?
The first astronaut throws the second astronaut toward the third one and the game begins. Describe the motion of the astronauts as the game proceeds.
How far from the release point will the projectile hit the ground? What velocity will the blivet be going when it strikes the ground?
A stone is thrown straight up. Compare its kinetic energy KE, to its potential energy GPE as it is going up.
Explain all your answers using what you have learned about Newton's laws of motion. (There are some great video clips of this actual experiment online.)
The resulting speed of the snowman, sled, and child is 2.90m/s. what is the snowmans mass?
Discuss and compare the principles of the Carnot cycle and the Brayton cycle as two different thermodynamic cycles.
What is the instantaneous velocity of the particle at time t = 5 sec? What is the instantaneous speed of the particle at t = 5 sec?
Discuss 2 things you have learned so far in this course as they relate to young-earth vs. old-earth, catastrophism vs. uniformitarianism.
Two plates of area 377 x 104 m2 each are separated by a distance 21.7 x 10-2 m. Calculate the capacitance of the capacitor.