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A 94 cm is pulled aside a small distance and released. After 120 oscillations the amplitude is one-half of its starting value. The damping is proportional to the speed of the pendulum bob.
(a) What is the value of the damping coefficient ? if the behavior is described by the equation y(t) = yo e-?t cos(2?ft)?
(b) What fraction of the original amplitude will remain after 15 min?
Transverse waves with a speed of 59.0 m/s are to be produced on a stretched string. A 4.95-m length of string with a total mass of 0.0600 kg is used. (a) What is the required tension in the string? N (b) Calculate the wave speed in the string if t..
A buzzer generates a sound by vibrating with a frequency of 440 Hz in air. If this buzzer is placed under water, What frequency would a fish hear
Water flows through a horizontal tube of diameter 3.0 m that is joined to a second horizontal tube of diameter 2.2 . The pressure difference between the tubes is 8.0 kpa . Find out the speed of flow in the first tube.
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the..
What is the force exerted by the scale if the elevator is accelerating downward with an acceleration of 2.6 m/s2. If the elevator's descending speed is measured at 10 m/s at a given point, but its speed is decreasing by 2.6 m/s2, illustrate what is ..
What is the thinnest soap film (excluding the case of zero thickness) that appears black when viewed by reflected light with a wavelength of 480 {rm nm}? The index of refraction of the film is 1.33, and there is air on both sides of the film.
Consider a stack of paper 3.0 meters high. each sheet of paper is the stack has a thickness of 0.01 centimeter
After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. explain the entering speed of the bullet.
Consider a harmonic, electromagnetic plane wave traveling along a line from the origin to the point (3,5,6). It is linearly polarized , Compute the irradiance of the wave
A 79, 37--long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 13 ball of clay travelling horizontally at 2.6 hits and sticks to the extremely bottom tip of the rod.
When the starter motor on a car is engaged, there is a 330A current in the wires between the battery and the motor, What minimum diameter can the wires have if the voltage drop along the wires is to be less than 0.45V
At which wavelengths (or energies) will you observe lines in infrared absorption (a phonon absorbs a photon) and raman scattering spectra? The temperature is 300 k. raman scattering is excited with a cw Argon laser at 514.5 nm.
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