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The allowed energies of a simple atom are 0.0 eV, 5.0 eV and 8.0 eV. An electron traveling at a speed of 1.8×10^6 m/s collisionally excites the atom.
What is the minimum speed the electron could have after the collision?
A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. how fast can the truck be moving without the crate sliding
A 63.0 ?F capacitor is connected to a generator operating at a low frequency. at what frequency will the fuse burn out
Light traveling in henzene (n 1.50) is incident on the flat surface of a piece of plastic. What is refractive index of the plastic
A 60 kg front seat passenger in a car moving initially with aspeed of 23 m/s (50 MPH) is brought to rest by an airr bag in a time of 0.4s. What is the impulse acting on the passenger
A solenoid with a cross-sectional area of 1.97×10^3 is 0.810 long and has 480 turns per meter. Find the magnitude of induced emf in this solenoid
An astronaut of mass 73 kg pushes off a satellite of mass 420 kg, exerting a force of 120 N for the 0.82 s they are in contact. What is the speed of the astronaut after they have separated
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
A size-5 soccer ball of diameter 22.6 and mass 426 rolls up a hill without slipping, reaching a maximum height of 3.50 above the base of the hill. How much rotational kinetic energy did it then have
A 5 m deep river runs on a horizontal 7 m long bridge and 8.5 m wide, which is hung in air 10 m high above the ground. What is the force on the side of the bridge
A 1.81 kg block and a 3.62 kg block are initially at rest on a frictionless, horizontal surface, How much does the kinetic energy of the system increase
A soccer player kicks the ball toward a goal that is 27.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
A heart defibrillator delivering 400 J of energy by discharging a capacitor initially at 10,000 V has a capacitance of 8.00 µF, What is the voltage of the second defibrillator
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