Air is flowing in an insulated duct at a rate of 2 kg/sec. Air enters the duct at 40 oC and 8-kW of heat is added with a electric resistance heater. Find the exit temperature of air. (Cp=1.005 kJ/kgK) a) 44 b) 30 c) 54 d) 60

A particular op amp using ±15-V supplies operates linearly for outputs in the range-14 V to+14 V. If used in an inverting amplifier configuration of gain - 100, what is the rms value of the largest possible sine wave that can be applied at the input

Calculate the magnitude of the force FB in the back muscles that is needed to support the upper body plus the box and compare this with his weight. The mass of the upper body is 55.0 kg and the mass of the box is 30.0 kg.

If you have a problem with your iLearn classroom or iLearn access what number do you call?

You recall an algorithm from elementary school for factoring a number N: Divide out all factors of 2, then of 3, then of 4, then of 5, then of 6, then of 7, etc. Finally, divide out all factors of N (of which there can be at most one).

When fluid in a pipe is accelerated linearly from rest, it begins as laminar flow and then undergoes transition to turbulence at a time ttr that depends on the pipe diame - ter D, fluid acceleration a, density ρ, and viscosity μ.

A steel with 1.0 % carbon is known as which one of the following: (a) eutectoid, (b) hypoeutectoid, (c) hypereutectoid, or (d) wrought iron?

A transistor can not be used as a Select one variable resistor switching device regulator tuning device

Where might you find recommendation engines at work?

Just getting to your class is enough for showing up. A) True B) False

A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.