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1. All objects radiate energy, in much the same way as an ideal blackbody. So why is it difficult to see objects in a dark room? Explain.
2. Explain why the existence of a cutoff frequency in the photoelectric effect supports a particle model of light, rather than a wave model.
3. In a Compton scattering experiment, x-ray photons strike free electrons and are scattered in different directions as a result. Compare the energy, wavelength, and momentum of the scattered x-ray photons to those of the incident x-ray photons.
In this problem you will model helium-3 as a non-interacting Fermi gas. Although 3He liquefies at low temperatures, the liquid has an unusually low density and behaves in many ways like a gas because the forces between the atoms are so weak. Heliu..
One solenoid is centered inside another. The outer one has a length of 53.0cm and contains 6600 coils, while the coaxial inner solenoid is 5.00 cm long, What is the mutual inductance of these solenoids
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 12.0 m/s, and the distance from the limb to the level of the saddle is 4.00 m.
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
The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
A thin uniform rod (mass = 0.75 kg) swings about an axis that passes through one end of the rod and is perpendicular to the plane of the swing. What is the maximum kinetic energy of the rod as it swings
Monochromatic light (Wavelength = 500 nm) passes through two slits and onto a screen 2.5 m away. what is the new distance between bright fringes
The tractor beam exerts a constant force of 4.0 104 N on the shuttlecraft. Both spacecraft are initially at rest. Explain how far does the starship move as it pulls the shuttlecraft aboard?
A 40.0 N crate starting at rest slides down a rough 6.0 m long ramp, inclined at 30 degrees with the horizontal. The force of friction between crate and ramp is 6.0 N. What will be the speed of the crate at the bottom of the incline?
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
a 20 kg mass sits on an inclined plane with friction making an angle of 50 degrees with respect to the horizontal. calculate the frictional force required to keep the mass from sliding down the incline
A photon with a wavelength of 3.70×10?13 m strikes a deuteron, splitting it into a proton and a neutron. calculate their speeds after the photodisintegration
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