Calculate the heat transfer to reach a final temperature
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A battery has an internal resistance of 0.9. a number of identical light bulbs, each with a resistance of 41.4, are connected in parallel across the battery terminals. the terminal voltage of the battery is observed to be one-half the emf of the b
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A simple Atwood's machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 9.0 m/s at the end of 9.0 s. At that instant, the kinetic energy of the system is 80 J and each mass has moved a distance of 40.5 m. Determine
An air line, 500 kPa, 600 K, is connected by a valve that is then opened until a final inside pressure of 400 kPa is reached, at which point T = 350 K. Find the air mass that enters, the work, and heat transfer.
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In a heart pacemaker, a pulse is delivered to the heart 76 times per minute. The capacitor that controls this pulsing rate discharges through a resistance of 1.8 x 106. One pulse is delivered every time the fully charged capacitor loses 64.4% of i
An electronic flash attachment for a camera produces a flash by using the energy stored in a 770 µF capacitor. Between flashes, the capacitor recharges through a resistor whose resistance is chosen so the capacitor recharges with a time cons
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An aluminum nucleus has 13 protons and 14 neutrons. A copper nucleus has 29 protons and 34 neutrons. What is the force of repulsion between an aluminum nucleus and a copper nucleus when they are separated by 10 to the -9 meters?
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