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In a closed piston-cylinder device, an isothermal expansion of anideal gas from 1.5 m3 to 4.7m3 occurs at a temperature of 99oC. How much heat is need to complete the process (in kJ/kmol)?
A concave shaving mirror has a focal length of 95 cm. find the image position of a cologne bottle placed in front of the mirror at a distance of 165cm. Calculate the magnification of the image. Is the image real or virtual? Is the image inverted o..
At relatively high temperatures nitrogen and oxygen more readily form a compound according to: N2(g) + O2 2NO(g). Calculate kp given that the initial pressures of nitrogen are 95 atm and 80 atm
consider a piston cylinder with 0.5 kg of r-134a as saturated vapor at -10oc. it is now compressed to a pressure of 500
Find the rms speed of an iron atom of mass 55.9 u at 280 K, Find the rms speed of a pollen particle of mass 5.36 10-13 g suspended in water at a temperature of 280 K
A 15-kg block rests on a level frictionless surface and is attached by a light string to a 5.0-kg hanging mass where the string passes over a massless frictionless pulley
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 77.0 rev/min in 3.40 s.
A conducting spherical shell of radius Ri has a net charge Q on it. Using Gauss's law, find the electric field between the two shells
Four identical particles of mass0.50 kg each are placed at the verticesof a 1.5 m multiplied by 1.5 m square andheld there by four massless rods, which form the sides of the square.
a 4.0-g bullet leaves the muzzle of a rifle with a speed of 326 ms. what force assumed constant is exerted on the
A playground is on the flat roof of a city school, 5.9 m above the street below (see figure). The vertical wall of the building is h = 7.40 m high, Find the speed at which the ball was launched
While painting the top of an antenna 206 m in height, a worker accidentally lets a 1.30-L water bottle fall from his lunchbox. The bottle lands in some bushes at ground level and does not break. If a quantity of heat equal to the magnitude of the cha..
What is the resistance of a lightbulb that uses an average power of 55.0 W when connected to a 60.0 Hz power source having a maximum voltage of 180 V
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