Imagine a planet 15 light-years away from earth that is inhabitable by humans like us they have developed a very powerful telescope allowing them see what is happening on earth if they look to the telescope today what year would it be on earth would they be able to see you explain
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Physics, 22.06.2019 04:10
Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60ā with each other as shown in the figure. what is the intensity of the transmitted beam, st?
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Physics, 22.06.2019 12:00
What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?
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Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50Ā°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3Ā°c. the refrigerant enters the compressor at 200 kpa superheated by 4Ā°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
Physics, 22.06.2019 16:30
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
Imagine a planet 15 light-years away from earth that is inhabitable by humans like us they have deve...
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