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A diffraction grating has a grating spacing of 2,102 nm. If a light ray of a wavelength 549 nm is incident perpendicularly upon the grating, what angle (in degrees) will you see the second order dif
The plates of a parallel-plate capacitor are 3.28mm apart, and each has an area of 12.2 cm^2. Each plate carries a charge of a magnitude 4.35x10^-8 C. The plates are in vacuum. What is the potencial
Use the power series method to solve the radial equation. Find the recursion formula for the coefficients, and determine the allowed energies.
How long after the big bang did it take the universe to cool to the threshold temperature for the formation of muons? What would be the mass of a particle-antiparticle pair that coul dbe formed by t
A nuclear power reactor generates 2.5 × 109 W of power. In one year (365.25 days), what is the change in the mass of the nuclear fuel due to the energy being taken from the reactor?
Suppose that the speed of light in a vacuum were one million times smaller than its actual value: c = 3.00 × 102 m/s. The spring constant of a spring is 690 N/m. Determine how far you would hav
Radium is a radioactive element whose nucleus emits an alpha particle (a helium nucleus) that has a kinetic energy of about 6.8 × 10-13 J (4.2 MeV). To what amount of mass is this energy equiva
A lamp is designed to operate at a temperature of 3100K. If the lamp is operated at a higher voltage that raises its temperature to 3500K, what will be the fractional increase in radiant energy?
Light is incident on the surface of metallic sodium, whose work function is 2.3 eV. The maximum speed of the photoelectrons emitted by the surface is 1.22 x 106 m/s. What is the wavelength of the li
The Schrodinger equation of a two dimensional harmonic oscillator can be handled by separation of variables in spherical coordinates, as well as cartesian coordinates. Use the power series method to
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.5° and the angle of refraction is 15.3°, find the critical angle for the liquid when surround
A flat, square coil with 23.0 turns has sides of length 0.120 m . The coil rotates in a magnetic field of 2.30×10-2 T.What is the angular velocity of the coil if the maximum emf produced is 20.
The flowing water carries away the heat produced by the body. If a resting person is known to have a thermal power output of 85 W, what will the temperature difference between the intake and outflow
a) How many joules are required to change 0.650 kg of solid lead at 22.0 oC to a liquid at 1300.0 oC? (Assume the specific heats of both solid and molten lead to be the same.)
The loop is wobbled so that its normal rotates in a cone about the field direction at the constant rate of 86.0 rev/min; the angle (30°) between the normal and the field direction remains unchang
A plastic bag is filled with helium at atmospheric pressure and 23.0 oC. Assume that the mass of the bag is negligible and take the temperature of the outside air to be 0 oC. With the help of this "
Engine oil at 200 oC is forced over a 20-cm-square plate at a velocity of 1.2 m/s. The plate is heated to a uniform temperature of 60°C. Calculate the heat lost by the plate
A certain radio station broadcasts at a frequency of 5 MHz with an average power output of 5 kW. (a) What is the energy of a photon in electronvolts? (b) How many photons does the station emit per s
A hydrogen atom is in its tenth excited state according to the Bohr model (n=11). (a) What is the radius of the Bohr orbit? (b) What is the angular momentum of the electron? (c) What is the electron
(a) What is the energy of the incident photon? (b) What is the work function for potassium? (c) What would be the stopping potential if the incident light had a wavelength of 430 nm? (d) What is the
What is the angular separation of two spectral lines of wavelengths 440 nm and 388 nm formed in order m=2 with a 382 line/mm grating? Express the answer in degrees with two decimal places.
A particle with mass m is confined on a line with length L. With uncertainty principle, estimate the minimum energy of the particle.
If a plane wave is reflected from the ocean floor at normal incidence with a level 20 dB below that of the incident wave, what are the possible values of the specific acoustic impedances of the flui
A rock weighing 98 N is thrown downward with a velocity of 20 m/s from the top of a 140 m tall building. What is the velocity of the rock at 120m above the ground?
A parallel plate capacitor has square plates 12 cm on a side separated by 0.10 mm of plastic with a dielectric constant of k=3.1. The plates are conected to a battery causing them to become opposely