Physics, 27.11.2020 02:30 khristaviaaa
An ideal gas is confined within a closed cylinder at atmospheric pressure (1.013 * 105 Pa) by a piston. The piston moves until the volume of the gas is reduced to one-ninth of the initial volume. What is the final pressure of the gas when its temperature returns to its initial value?
Answers: 3
Physics, 22.06.2019 13:40
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
Answers: 1
Physics, 22.06.2019 17:00
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
Answers: 2
Physics, 22.06.2019 18:00
Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)
Answers: 3
Physics, 23.06.2019 10:00
Two point charges, separated by 1.5cm, have charge values of +2.0 and-4.0 uc, respectively. what is the value of the mutual force between them
Answers: 3
An ideal gas is confined within a closed cylinder at atmospheric pressure (1.013 * 105 Pa) by a pist...
Engineering, 26.07.2019 18:10
Social Studies, 26.07.2019 18:10
English, 26.07.2019 18:10
Mathematics, 26.07.2019 18:20
Engineering, 26.07.2019 18:20