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What is the speed of an electron with a de Broglie wavelength of 0.140nm ?
What is the speed of a proton with a de Broglie wavelength of 0.140nm ?
A charge +q is at the origin. A charge -2q is at x = 8.50 m on the +x axis, For what finite value of x is the electric field zero
A cubical Gaussian surface surrounds charges, q1=6.0 x 10-12C, What is the electric flux passing through the surface
The mass of a flywheel is 6.0 x10^4 kg. This particular flywheel has its mass concentrated at the rim of the wheel. what is the magnitude of its angular momentum
A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, What is the temperature change in the wire
A double slit has two slits of width 0.650 mm separated by a distance between centres of 2.340 cm. How many interference fringes could be seen under the diffraction central maximum
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
What mass of stone is necessary if the temperature is not to drop below 18.5°C overnight. Sunlight shining in during the daytime is absorbed by the floor, interior walls, and objects in the room, raising their temperature to 37.5°C.
An air puck of mass 0.20 kg is tied to a string and allowed to revolve in a circle of radius 0.9 m on a frictionless horizontal table. What is the speed of the puck
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the average density of the white dwarf
An aluminum cylinder is suspended in an unknown fluid by a spring scale. Outside the fluid, the object weighs 20N. In the fluid,
A thin layer of oil (n=1.25) is floating on water (n=1.33). What is the minimum non zero thickness of the oil in the region
Find the de Broglie wavelength ? for an electron moving at a speed of 1.00×106m/s. Find the de Broglie wavelength of a baseball pitched at a speed of 40.5m/s
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