Physics, 30.11.2020 18:10 lexipiper8296
A child is perched perilously above a 150m ravine. The child has a mass of 45kg. How much gravitational potential energy does the child have?
Answers: 1
Physics, 21.06.2019 16:10
In 1995 a research group led by eric cornell and carl wiemann at the university of colorado successfully cooled rubidium atoms to the 20-200 nk temperature range. assuming (incorrectly) that the rubidium atoms behave liké particles of a classical ideal gas, calculate the rms speed of a rubidium atom at a temperature of 112.0 nk. in the experiments one particular isotope of rubidium was used, rubidium-87. the molar mass of this isotope is 86.91 q/mol. tries 0/20 submit answer
Answers: 1
Physics, 21.06.2019 19:00
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
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
Physics, 22.06.2019 14:40
An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
Answers: 1
A child is perched perilously above a 150m ravine. The child has a mass of 45kg. How much
gravitati...
Mathematics, 07.10.2020 06:01
Mathematics, 07.10.2020 06:01
Mathematics, 07.10.2020 06:01
Mathematics, 07.10.2020 06:01
Physics, 07.10.2020 06:01
Mathematics, 07.10.2020 06:01
Chemistry, 07.10.2020 06:01
Spanish, 07.10.2020 06:01
Mathematics, 07.10.2020 06:01
Mathematics, 07.10.2020 06:01
Health, 07.10.2020 06:01