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An insulated vertical piston cylinder device initialy contains 10kg of water, 6 kg of which is in the vapor phase. The mass of the piston is such that it maintains a constant pressure of 200 kPa inside the cylinder. Now steam at 0.5 Mpa and 350 degrees C is allowed to enter the cylinder from a supply line until all the liquid in the cylinder has vaporized. Determine the final temperature inside the cylinder.
A model rocket is launched straight upward. Its altitude y as a function of time is given by y = bt -ct2, where b = 82 m/s, c = 4.9 m/s2, t is the time in seconds, and y is in meters, (a) make use of differentiation to find out a general expressio..
A spark occurs at the tip of a metal needle if the electric field strength exceeds 4.00×106 N/C, What is the minimum surface charge density for producing a spark
A spacecraft approaching the earth launches an exploration vehicle. What is the speed of the exploration vehicle relative to the spaceship
The pressure at the surface of the water will be 140kPa , and the depth of the water will be 13.8m . The pressure of the air in the building outside the tank will be 87.0kPa
some types of glass have a range of indices of refraction of about 1.4 to 1.7. What is the range of the polarizing angle
A light string is wrapped around a solid cylinder and a 200 g mass hangs from the free end of the string, what is the tension and the mass of the cylinder
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 58.0?. Dog A exerts a force of 260N , and dog B exerts a force of 320N
What is the length of the shadow cast on the vertical screen by your 9 cm hand if it is held at an angle of 20 above horizontal.
If the specific heat of the human body is approximately 0.830 kcal/kg°C and the heat of vaporization of the alcohol is 203 kcal/kg, determine the mass of alcohol necessary to lower the body temperature down to 102°F
A 495-? resistor, an uncharged 1.50-µF capacitor, and a battery with an emf of 6.21 V are connected in series. What is the current after one time constant
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet, in years
A block of mass .250 kg traveling at (1.0 m/s)y hits a second block with a .375 kg mass travelling at (1.2m/s)x.
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