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Measurements show that the enthalpy of a mixture of gaseous reactants increases by 281.kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that 77.kJ of work is done on the mixture during the reaction.
Is the reaction exothermic or endothermic?
an ion accelerated through 180.00 v has its potential energy decreased by potential energy of 5.76 x 10-17 j. calculate
An uncharged nonconductive hollow sphere of radius 18.0 cm surrounds a 13.0 µC charge located at the origin of a Cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. Compute t..
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A 1300 kg cartraveling at a speed of 37.0 {\rm m}/{\rm s} skids to a halt on wet concrete where mu_k = 0.500 . How long are the skid marks
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A hollow AISI 1045 steel shaft 5 in OD and 4 in ID transmits 180 hp at a speed of 240 rpm. The length of shaft subjected to the torque is 10 ft.
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Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.134 N when their center-to-center separation is 68.5 cm. What was the positive charge in coulombs on the other
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