A system is acte on by its suroundings in such as way that
A system is acte on by its suroundings in such as way that is receives 50 J of heat while doing 20 J of work. What is its net change in internal energy?
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two objects hang on a pulley from the ceiling mass 1 is 3kg andis resting on the floor while mass 25kg is hanging in
the maximum induced emf in a generator rotating at230 rpm is 40 vhow fast must the rotor of the generatorrotate if it
a solar cell generates a potential difference of 010 v when a450 resistor is connected across it and a potential
the current in a single-loop circuit with one resistance ris 70 a when an additionalresistance of 30 is insertedin
a system is acte on by its suroundings in such as way that is receives 50 j of heat while doing 20 j of work what is
two vectors have magnitudes of 10m and 15m the angle between them when they are drawn with their tails at the same
a cylinder containing an ideal gas has a volume of 20m3 and a pressure of 10 x 105 pa at a temperature of 300k the
an electron moves in a circular path perpendicular to a constantmagnetic field with a magnitude of 500 mt the angular
a 350 kg block on a smooth tabletop is attached by a string to ahanging block of mass 28 k the blocks are released from
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