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Saturated water vapor at 2800C is isothermally condensed to a saturated liquid in a piston-cylinder system. Calculate the heat transfer and the work done during this process?
Find the pressure difference on an airplane wing if air flows over the upper surface with a speed of 114 m/s , and along the bottom surface with a speed of 105m/s
Two balls of mass 0.6 kg and 0.8 kg are connected by a low-mass spring. This device is thrown through the air with low speed, what is the total momentum of the device
Consider a 7 solar mass main sequence star, Estimate its luminosity in solar luminosities and how long (in years) it could maintain its luminosity through gravitational collapse
A 76kg student consumes 2500 Cal each day and stays the same weight. One day, he eats 3500 Cal and, wanting to keep from gaining weight, decides to "work off" the excess by jumping up and down.
A panicular spring has a spring constant of 86 N/m and a mass of 0.548 kg at its end. When the spring is driven in a viscous medium, find the damping parameter due to the viscous medium
Three resistors havin resistances of R1= 1.66?, R2= 2.44?, and R3= 4.94? respectively, are connected in parallel to a 28.2V battery that has negligible internal resistance. Find the power dissipated in each resistor
At one instant a bicyclist is 25m due east of a park's flagpole, going due south with a speed of 8 m/s. Then, 11 s later, the cyclist is 65m due north of flagpole, going due east with a speed of 10 m/s.
A point charge with charge q1 is held stationary at the origin. A second point charge q2 with charge moves from the point (x1, 0) to the point (x2,y2 ). How much work is done by the electrostatic force on the moving point charge? Express your answ..
The 20-cm-long wrench in the figure swings on its hook with a period of 0.80s, What is the moment of inertia about the hook
What is the distance between two converging lenses, each of ofcal length f and used in combination to become a telescope
Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, what is the magnitude of the applied force
What is the friction force that acts on the firefighter?
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