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Problem: The lifetime of the first excited state of a hydrogen atom is about 10 ns.
Part A: What is the uncertainty in energy of the photon emitted when the atom returns to its ground state?
Please show all work to find the uncertainty in energy of the photon emitted when the atom returns to its ground state.
A 0.470-kg glider, attached to the end of an ideal spring with force constant k = 500 N/m, undergoes SHM with an amplitude 0.040 m. Compute the maximum speed of the glider. Compute the speed of the glider when it is at x = -0.015 m.
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.9 kg and the sign has a mass of ms = 15.4 kg. The length of the beam is L = 2.57 m. The sign is attached at the very end of the beam, but the horizontal wire h..
One end of a 14.5 m-long wire having a total mass of 0.600kg is fastened to a fixed support in the ceiling, how much time does the pulse take to reach the other end
A bus with a mass of 1230 kilogram moving at 105 km/hr stops within a distance of 53.0 meter, Determine what force is required to stop the bus
a mass of 20 kg is attached to a spring whose spring constant is 2000 nm. the mass is displaced and released. the mass
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The coefficient of linear expansion os steel is 0.000012/C. A section of a railroad track consists of 5.0 km in length. By what length would this rail change
A car traveling 52.4 km/h is 22.5 m from a barrier when the driver slams on the brakes. The car hits the barrier 1.90 s later. How fast is the car traveling at impact
an rc circuit is connected across a dc voltage source through an open switch. the switch is closed at t0s. which of the
A 1000kg car moving 40m/s skids to a stop. During the skid, the only force is the frictional force between the tires and the road, which is 6000N. find the distance the car moves before coming to a stop
A cart with mass 310 g moving on a frictionless linear air track at an initial speed of 1.0 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. What is the speed of the two-cart center of mass
An auto goes from 0 to 30 m/s in 5 s, at a uniform rate of acceleration. The radius of the auto's tires is .33 m. How many revolutions per second are the tires making
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