Ineed both parts (a) given a material with an attenuation coefficient (a) of 0.6/cm, what is the intensity of a beam (with an incident intensity, lo) after it has traveled through 1 cm of the material? after it has traveled through 2 cm of the material? (b) what is the optical density of a 1 cm thick piece of such a material? of a 2 cm thick piece of such a material?
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Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
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Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
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Physics, 22.06.2019 21:30
Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?
Answers: 3
Ineed both parts (a) given a material with an attenuation coefficient (a) of 0.6/cm, what is the in...
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