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The wavelength of a photon is 7 x10 - 7 m. Calculate the frequency of the photon. Also calculate the energy of the photon in Joules and e.V
A sailor strikes the side of his ship just below the surface of the sea. He hears the echo of the wave reflected from the ocean floor directly 3.85 s later.
A steel guitar string has a length of 74 cm and thickness of 0.37 mm. It is under 35N tension. Calculate the wave speed in the string
A loudspeaker is placed between two observers who are 120m apart along the line connecting them. If one observer records a sound level of 60dB
At an open-air concert a person sits at a location that is 7m and 9.10m, respectively, from speakers at each side of the stage.
A 1500-Hz sound and a 8500-Hz sound each emerge from a loudspeaker through a circular opening whose diameter is 0.30 m.
The range of human hearing is roughly from twenty Hz to twenty kilohertz. Based on these limits and a value of 343 m/s for the speed of sound
The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases.
When a guitar string is sounded along with a 440 Hz tuning fork, a beat frequency of 5Hz is heard. When the same string is sounded along with a 436 Hz
Explain the difference between energy and power and how they are related to work. Give examples of each).
Find the total energy of a vibrating string of length L, fixed at both ends, oscillating in its n'th characteristic mode with and amplitude A.
Find the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive?
If the force of friction acting on the two bricks is 5.0 N, how much time will elapse before the bricks come to rest?
When sound emerges from a loudspeaker, is the diffraction angle determined by the wavelength, the diameter of the speaker, or a combination of these two factors
If the frequency of the third harmonic of the vibrating string is 600 Hz, what is the frequency of the first harmonic?
An untethered(free) weather balloon travelling with the wind (at wind speed) emits a 1 khz sound wave. The wind is blowing with respect to the land
You can estimate the distance to a lightning flash by counting the seconds that elapse between the time you see the flash
Pick a specific sound, give the decibels of the sound, and explain what this measurement means?
The echo comes back at an angle of 20 degrees above the horizontal and the echo took 2.32 s to get back to submarine.
The atom is mostly empty. If all the atoms in the Earth collapsed in to the size of a nucleus, what would be the Earth's diameter?
What conditions must be met to produce simple harmonic motion?
What is the potential energy of the block when it comes to rest on the incline?
Two sound waves are emitted: y1, with frequency f1, and y2, with frequency f2, with other constants identical, as expressed below.
A student sits on a freely rotational stool holding two dumbbells, each of mass 3.00 kg. When the students arms are extended horizontally.
A simple harmonic oscillator, of mass m and natural frequency w_0, experiences an oscillating driving force f(t)=m a cos(wt).