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A 2.50-kg textbook is forced against a horizontal spring of negligible mass and force constant 250 N/m, compressing the spring a distance of 0.250 m. When released, the textbook slides on a horizontal tabletop with coefficient of kinetic friction uK= 0.30. Use the work-energy theorem to find out how far the textbook moves from its initial position before coming to rest
a garden hose is attached to a water faucet on one end and a spray nozzle on the other end. the water faucet is turned
A ball is dropped from a height of 1.50 m and rebounds to a height of 1.20 m. Approximately how many rebounds will the ball make
A motorcycle daredevil plans to ride up a 2.50m high 25.0° ramp, sail across a 10-m-wide pool filled with hungry crocodiles, and land at ground level on the other side.
A 2.0 kg mass is projected from the edge of the top of a 20mtall building with a velocity of 24m/s at some unknown angle abovethe horizontal. find the kinetic energy of the mass just before it strikes the ground
A 130-W lamp is placed in series with a resistor and a 100-V source. If the voltage across the lamp is 29 V, What is the resistance R of the resistor
the pontential difference across the terminals of a battery is 8.4V when there is a current of 1.50A in the battery from the negative to the positive terminal. what is the emf of the battery
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed, Determine the magnitude of the electron's centripetal acceleration
An empty parallel plate capacitor is connected between the terminals of a 15.6-V battery and charges up. The capacitor is then disconnected from the battery, and the spacing between the capacitor plates is doubled.
What is the magnitude of the electric field between the plates?
A jet aircraft is flying at constant altitude. At t1 = 0 it has components of velocity vx = 150 m/s and vy = 130 m/s, What is the acceleration's magnitude and direction during this time interval
A cylindrical cistern, constructed below ground level,is 2.8 m in diameter and 2.0m deep and is filled to the brim with a liquid whose index ofrefraction is 1.3. A small objectrests on the bottom of the cistern at its center.
Once you have a focused image on your screen, move the lens closer to the bulb and move the screen to find the image once again. What is the behavior of the image distance? What happens if you position the lens so that the bulb is near the focal p..
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