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Suppose one gallon of gasoline produces 1.1 x 108 J of energy, and this energy is sufficient to operate a car for twenty miles. If a 504 mg drop of gasoline could be converted completely into thermal energy, how many miles could the car go with that energy?
In a 261-turn automobile alternator, the magnetic flux in each turn is ?B = (2.62E-4 T*m2) cos(?t), determine the maximum emf in the alternator
An 77 box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 each second. compute the coefficient of kinetic friction between the box and floor
My neighbor opened the turner circuit of his radio and noticed that it uses a 4.5 ?H inductor together with a variable capacitor that ranges from 0.32 pF to 1.28 pF
If there is a potential difference of V between the metal and the detector, what is the minimum energy that an electron must have
Agriculture and forestry for food and fuels, space heating of large and small buildings, water heating, and heating for drying and many other processes are current and potential applications of solar energy.
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
Find the quantum uncertainty of the position of a car along its direction of motion. Assume that the mass of the car is 1840 kg and its speed is known with accuracy ?v = 1 km/hour
When a 21.0-V emf device is placed across two resistors in series, a current of 12.0 A is flowing in each of the resistors. determine the magnitude of the larger of the two resistance
At the right you see that a string (mass negligible) passes over a pulley. calculate the normal force of the floor on the bottom of the 5 kg mass
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 53.0-gram mass is attached at the 27.0-cm mark, What is the mass of the meter stick
A man riding a bicycle 140kg together is traveling at 8.6 m/s due north when he is brought to a stop in .50 seconds by a gazelle running to the south. Calculate the original momentum of the cyclist(magnitude and direction)
When operated on a household 110-V line, typical hair dryers draw about 1650 W of power. What is the resistance of the dryer
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