Estimate amount of power needed to operate air conditioner
An air conditioner provides 1 Kg/s of air at 15 C cooled from outside atmospheric air at 35 C. Estimate the amount of power needed to operate the air conditioner. Clearly state all assumptions made.
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A pirate ship fires a 25kg cannonball with a velocity of 100m/s at another very heavy trader ship. the ship is at rest. the cannonball bounces off with a velocity of -0.5m/s. a) How much energy was dissipated during this collision
The time for a professor to grade an exam is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.2 minutes. The interval around the mean that contains 95% of the times needed to grade exams is
Find the energy the rock bed can give out. What is the heat engine's efficiency at the beginning of the process, and what is it at the end of the process?
Arvin the Ant is on a picnic table. He travels 30 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the magnitude of Arvin's net displacement?
It is estimated that 56% of the children between the ages of 3 and 5 years are already enrolled in school. In a sample of 350 children what is the probability that at least half are enrolled in school?
What is the smallest motor you would need for a heat pump absorbing heat from the container and rejecting heat to the room at 20 C?
The manufacturing of semiconductor chips produces 2% defective chips. Assume the chips are independent and that a lot contains 1000 chips.
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Which change in glomerular filtration rate (GFR) would indicate a patient is in the second stage of acute kidney injury (AKI)?
What kind of traits were used to identify the organisms? Which traits were easiest to distinguish? Which ones were hardest?
What is the cerebral cortex and what is its function? Explain how electrical conduction travels along an axon.
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Two male elk fight during mating season to win access to females. In the previous question, you determined if the competition was intraspecific or interspecific
A forest experiences a long drought, causing food and water sources to dry up. Many animals die from starvation or dehydration.
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