Physics, 21.06.2019 23:10 theh301234
6β55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.
Answers: 2
Physics, 22.06.2019 15:50
An object with initial temperature 130 β f is submerged in large tank of water whose temperature is 50 β f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = β 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Physics, 22.06.2019 18:00
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
Physics, 22.06.2019 19:40
Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.
Answers: 2
6β55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate...
Mathematics, 16.10.2020 14:01
Business, 16.10.2020 14:01
Social Studies, 16.10.2020 14:01
History, 16.10.2020 14:01
Mathematics, 16.10.2020 14:01
World Languages, 16.10.2020 14:01
Mathematics, 16.10.2020 14:01
Mathematics, 16.10.2020 14:01
Mathematics, 16.10.2020 14:01
Business, 16.10.2020 14:01
Social Studies, 16.10.2020 14:01
History, 16.10.2020 14:01
English, 16.10.2020 14:01