Physics, 14.11.2019 19:31 johnross17
A61 kg engineer leaves her office on the 33rd floor of a skyscraper and takes an elevator up to the 59th floor. later she descends to street level. the engineer takes the zero of potential energy at street level and the distance from one floor to the next is 3.5 m .
what is the engineer's potential energy in her office?
Answers: 3
Physics, 21.06.2019 20:30
Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.
Answers: 2
Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
Answers: 3
A61 kg engineer leaves her office on the 33rd floor of a skyscraper and takes an elevator up to the...
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