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When a liquid and its vapor are in equilibrium, the rates of evaporation of the liquid and condensation of the vapor are equal. Assume that every molecule of the vapor are equal striking the liquid surface condenses, and assume that the rate of the evaporation is the same when the vapor is rapidly pumped away from the surface, as when liquid and vapor are in equilibrium. The vapor pressure of mercury at 0 degrees celsius is 185 x10^-6 Torr and the latent heat of vaportization is about 340 J/g. Compute the rate of evaporation of mercury into a vacuum, in g/cm2s at a temparature of a) 0 degrees celsius and b) 20 degrees celsius?
A player bounces a 0.47 kg soccer ball off her head, changing the velocity of the ball from i = (9.2 m/s) + (-2.7 m/s) to f = (6.1 m/s) + (5.5 m/s). The ball is in contact with the player's head for 6.70ms.
The flywheel of an engine has a moment of inertia 2.50 about its rotation axis. What constant torque is required to bring it up to the angular speed of 390 in a time of 8.50, starting from rest? What is its last kinetic energy . Discover an angular..
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
The 1 kg block is tied to the wall with a rope. It sits on top of the 2 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2kg block is = 0..
The primary coil of an ideal transformer has 710 turns, and the secondary coil has 190 turns. find the output current of the secondary coil
A 190 kg block is pulled at a constant speed of 4.4 m/s across a horizontal floor by an applied force of 138 N directed 37° above the horizontal. Illustrate what is the rate at which the force does work on the block?
Determine the maximum load in terms of theta_min and other quanitites given in the problem introduction.
A ship sets out to sail to a point 136 km due north. An unexpected storm blows the ship to a point 108 km due east of its starting point. How far must it now sail to reach its original destination.
Two of the charges are negative and one is positive. Illustrate what work does the electric field have to do as these charges are assembled from infinity, without acceleration?
During normal beating, the heart creates a maximum 4.30 mV potential across 0.330 m of a person's chest, What is the maximum electric field strength created
Explain how many pellets must be added to 450 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container.
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
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