Physics, 24.06.2019 22:30 eaglesjohnson414
Which of the following statements best characterizes the surface of the planet mars? the surface of mars is continuously resurfaced by ongoing volcanic activity; consequently, there are almost no visible impact craters. all the big volcanoes are in the northern hemisphere of mars, and most of the craters are in the southern hemisphere. eighty percent of the surface of mars is rolling plains, with a number of major volcanoes and only two continent-sized uplands. on mars there are several moving lithospheric plates rimmed by long mountain chains, deep subduction trenches, and several large rift valleys.
Answers: 1
Physics, 21.06.2019 20:00
When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.
Answers: 1
Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32Γ10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^β1 mol^β1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022Γ10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70βc. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 07:00
We put a force of 50n on an object and the acceleration is 100 m/sΒ². what is the mass of the object?
Answers: 1
Which of the following statements best characterizes the surface of the planet mars? the surface of...
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