4600 J of heat absorbs by the system and 6050 J of work is done on the system. What is the change in internal enerygy of the system?
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The system absorbs 640 J and the work system does on surroundings is 260J. Therefore by the first law of thermodynamics, the internal energy of the system increases by:
△U=q−W=(640−260)=+380 J.
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II Review | Constants Starting at t = 0 a net external force in the +x-direction is applied to an object that has mass 5.00 kg. A graph of the force as a function of time is a straight line that passes through the origin and has slope 5.00 N/s. Part A If the object is at rest at t = 0 what is the magnitude of the force when the object has reached a speed of 9.00 m/s? Express your answer with the appropriate units. UA ? F= Value Units Submit Request Answer
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