Answers: 2
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20ยฐc at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kgยฐc) enter at 160ยฐc at a rate of 0.95 kg/s and leave at 95ยฐc. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
Physics, 22.06.2019 14:40
The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg ยท s2). use g = 9.80 m/s2 and calculate the mass m of the ball.
Answers: 1
Physics, 22.06.2019 17:30
Frequency of electromagnetic waves that a radio station is assigned is called
Answers: 1
Physics, 22.06.2019 18:30
Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?
Answers: 1
A rock thrown with a horizontal velocity of 20m/s from a cliff that is 125m above level ground. If a...
Mathematics, 07.08.2019 19:10
Mathematics, 07.08.2019 19:10
Mathematics, 07.08.2019 19:10
History, 07.08.2019 19:10
English, 07.08.2019 19:10
Mathematics, 07.08.2019 19:10
English, 07.08.2019 19:10
Engineering, 07.08.2019 19:10