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What is the frequency heard by a person driving 79.17 km/h toward a blowing factory whistle (f = 506.77 Hz) is the air temperature is 21.5 oC?
During an earthquake, the top of a building oscillates with an amplitude of 30cm at 1.4Hz. What is the maximum acceleration of the top of the building
Calculate velocity of electron in first Bohr orbit of hydrogen atom (Given r = a0). Find de-Broglie wavelength of the electron in first Bohr orbit
A proton is fired directly into a uniform electric field that is able to bring the charge momen- tarily to rest. How much work does the electric field do in stopping the proton
The allowed energies of a simple atom are 0.0 eV, 4.0 eV, and 6.0 eV. What wavelengths appear in the atom's absorption spectrum
The magnetic flux through each loop of a 75-loop coil is given by (8.8t-0.5It^3) Tm2 where the time is in seconds. Determine the induced emf as a function of time
Two electrons are confined in an extremely thin wire of length a. You may treat this wire as a one-dimensional infinite potential well. What is the energy of the ground state
A snowboarder is pulled by a tow rope along a horizontal surface with a constant force of 60 N. How far must the boarder be pulled, starting from rest, so that her final kinetic energy is 500 J.
Three moles of an ideal gas are contained in a 75 L container at a pressure of 1.6 atm. What is the temperature of the gas
Find the far point of an eye for which a prescribed lens has an optical power of -0.62 d
q1. the loaded cab of an elevator has a mass of 3.0 x 103 kg and moves 221 m up the shaft in 23 s at constant speed. at
determine that the auto was traveling at a speed of approximately 30 m/s upon impact with the groung. Explain how fast must the car have been moving before leaving the road?
Determine the number of moles of air that leave the house during the daytime.
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