Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120Ā°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 12:30
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
Physics, 23.06.2019 01:40
When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.
Answers: 3
Physics, 23.06.2019 02:30
Which substance partical has negligible massand travels around outsidethe nucleus
Answers: 3
Type the correct answer in the box. round your answer to the nearest whole number. the population in...
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