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A beam of light of wavelength 630 nm is incident on a slit that is 0.400 mm wide. If the distance among the slit and the screen is 1.80 m, what is the width on the screen of the central bright fringe?
This isotope can also decay by ?-emission. What is the energy release in this case? What is the maximum kinetic energy of the emitted ?-particle
A water dispenser for pets has an invented plastic bottle ( the water is dyed blue for contrast).When a certain amount of water is drunk from the bowl, Explain the operation of the dispenser
A wagon is being pulled up a hill by a running child. Derive the work done by friction on the wagon
a tiny .5 kg object moves on a frictionlesshorizontal table in a circular path of radius 1.0 m the angular speed is 6.28 rad/s the object is attached to a string ofnegligible mass that passes through a small hole in the table atthe center of the c..
An electron of energy 400 eV moves at right angles to a uniform magnetic field along an arc of radius 2.0cm. What is the energy of the second electron
runner a is initially 5.7 km west of a flagpole and is running with a constant velocity of 8.3 kmh due east. runner b
A 2.30kg hoop 2.20m in diameter is rolling to the right without slipping on a horizontal floor at a steady 3.00rad/s. What is the total kinetic energy of the hoop
a torsion test specimen has a radius 25 mm wall thickness 3 mm and gage length 50 mm. in testing a torque of 900 n-m
The drawing below shows a balanced Michelson interferometer with perfectly equal length arms in which a piece of glass (n = 1.4) has been inserted into the horizontal arm.
a 28.5 g bullet strikes a 0.520 kg block attached to a fixed horizontal spring whose spring stiffness constant is
How many 119W light bulbs can you use in a 134V circuit without tripping a 15 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each light bulb is 134 V.)
a stationary particle of charge q 2.8 times 10-8 c is placed in a laser beam an electromagnetic wave whose intensity
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