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Given that the latent heat of water/steam is approximately 41,000 J/mol, at what pressure will water boil at 50 degress Celcius?
hint: remember that at 1 atm water boils at 373 K. Also, assume that the latent heat is constant and that the volume of the liquid phase is negligible compared to the volume of the gas phase.
A 2.05 cm tall object is placed 30.0 cm to the left of a converginglens with a focal length f1 = 21.0 cm. How tall is thefinal image of the object
A student could either pull or push, at an angle of 30â?? from the horizontal, a 45kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
10g of steam at 150 degree Celcius are added to 90g of liquid water in a 60g copper vessel, both of which are at 0 degree Celcius. Determine the final equilibrium condition
A 47.7 kg girl is standing on a 127 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the ice surface
Find out the drill's angular acceleration. Determine the angle through which the drill rotates all through this period.
A mass M of a liquid at a temperature T1 is mixed with an equal mass of the same liquid at a temperature of T2. The system is thermally insulated. If C is themperature-independent specific heat of that liquid
What is the initial (horizontal) velocity of the ball.
The electric motor of a model train accelerates the train from rest to 0.820 m/s in 18.5 ms. Find the average power delivered to the train during the acceleration
A fire hose 4 cm in diameter is capable of spraying water at a velocity of 20 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose
Assuming that the depth of Earth's atmosphere is 100.0 km, what is the total charge incident on the atmosphere in 177.0 s? Assume that the radius of the surface of the Earth is 6378. km.
A 20 Kg loudspeaker is suspended 2.0 m below the ceilling by two cables that are each 30' from vertical . What is the tension in the cables
The last stage of a rocket is traveling at a speed of 7200 m/s. This last stage is made up of two parts which are clamped together, What is the speed of the payload
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