Engineering, 09.09.2021 07:30 trinity0929
Diabetes and obesity are serious health concerns in the
United States and much of the developed world. Measuring
the amount of body fat a person carries is one way to monitor
weight control progress, but measuring it accurately involves
either expensive X-ray equipment or a pool in which to dunk
the subject. Instead body mass index (BMI) is often used as a
proxy for body fat because it is easy to measure: BMI = mass
(kg)/(height (m))2
= 703 mass(lb)/(height(in))2
. In a study of
250 men at Bingham Young University, both BMI and body
fat were measured. Researchers found the following summary
statistics:
Answers: 2
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 18:10
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
Engineering, 04.07.2019 18:10
Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables
Answers: 1
Engineering, 04.07.2019 18:20
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
Diabetes and obesity are serious health concerns in the
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