If a mineral can be mined, what is it called?
a. a metal
b. a precious jewel
c....
Physics, 04.02.2020 16:57 lupitasalas9283
If a mineral can be mined, what is it called?
a. a metal
b. a precious jewel
c. an ore
d. a gemstone
Answers: 3
Physics, 21.06.2019 15:30, fatback7063
Aflower pot weighing 3 newtons is sitting on a windowsill 30 meters from the ground is the energy of the flower pot potential or kinetic? how many joules is this
Answers: 1
Physics, 21.06.2019 19:00, mfoster495
How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?
Answers: 3
Physics, 22.06.2019 14:20, jeny89
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°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
Mathematics, 16.10.2020 07:01
English, 16.10.2020 07:01
Mathematics, 16.10.2020 07:01