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A 9.0-V battery is connected to a bulb whose resistance is 2.7Ω.
How many electrons leave the battery per minute?
__________electrons/minute
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker, What is the total intensity level
A golf ball of mass 0.045 kg is hit off the tee at a speed of 34m/s. Find the impulse imparted to the golf ball
A friend of yours is loudly singing a single note at 400 Hz as driving toward you at 250 m/s on a day when the speed of sound is 340 m/s
You are lowering two boxes, one on the top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp.
Two 24 cm focal-length converging lenses are placed 16.50 cm apart. An object is placed 39.0 cm in front of one. Where would the final image formed by the second lens be located.
The acceleration due to gravity on the surface of the moon is about g/ 6. If a pendulum has a period T on earth what will its period be on the moon?
A point charge q1=4nC is placed at the origin, and a second point charge q2= -3nC is placed on the x-axis at x= 20cm. A third point charge q3=2 nC is to be placed on the x-axis between q1 and q2.
A 4.1kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.3m/s2, find the force exerted by the rope on the bucket.
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell
A group of hikers hear an echo 2.50 s after they shout. If the temperature is 28°C, how far away is the mountain that reflected the sound wave.
Three moles of a monatomic ideal gas are heated at a constant volume of 2.23 m3. What is the change in the temperature of the gas
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