Answer:
Refrigerant R-134a is to be cooled by waterin a condenser.The refrigerant enters thecondenser with a mass flow rate of 6 kg/minat 1 MPa and 70 C and exits at 35 C. The cool-ing water enters at 300 kPa and 15 C andleaves at 25 C. Neglecting pressure drops,determine a) the required mass flow rate ofthe cooling water, and b) the heat transferrate from the refrigerant to the water.SolutionFirst consider the condenser as the control volume. The process is steady,adiabatic and no work is done. Thus over any time intervalΔt,ΔEΔt=0and thusXin˙E=Xout˙Ewhere˙E=˙m h+12V2+gz650:351 Thermodynamics·Prof. Doyle Knight37
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I’m pretty sure the answer is the engine needs to be checked right away
Answer:
FET Transistor
Explanation:
A properly biased Field Effect Transistor will take the audio input and amplify it to drive speakers
For efficient treatment, the dissolved oxygen concentration in the aeration tank must be kept between 1-3 mg/L. The microbial biomass will die at low DO levels, and it will take time and money to rebuild it.
The depth, which normally ranges from 3 to 4.5 meters, determines how effectively air is aerated. The breadth, which is typically maintained between 5 and 10 meters, regulates the mixing. The ideal width-to-depth ratio is 1.2 to 2.2. The distance shouldn't be shorter than 30 meters or longer than 100 meters. Bacteria used in wastewater treatment and stabilization are given oxygen by aeration. The bacteria require oxygen for biodegradation to take place.
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Answer:
B. F. (P[1..n])
for i n down to 2
k position of the ith smallest pancake
F(k) //Flip it to the top, if the top pancake’s burned side is down
F(1)
F(i) //Flip it into place, if the top pancake’s burned side is up
F(1)
The algorithm uses at most 3n-2 flips in the worst case
Explanation:
Whenever each pancake reaches the top of the stack, it will be flipped, if necessary to ensure that its burned side is up, so that whenever it is flipped down to its proper place, its burned side is down
