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A resonance tube for a pipe-organ is closed at the bottom by a speaker (pressure antinode) and open to the atmosphere at the top (pressure node).
How long should the tube be built so that its fundamental resonant frequency is 64 Hz (lowest C)? Assume the speed of sound is 340 m/s.
What are the next two harmonic frequencies above the fundamental frequency that would create resonance in the same tube?
What length tubes (also closed at one end) would have as their fundamental frequencies 128 Hz, 192 Hz, and 256 Hz?
A long and narrow rectangular loop of wire of width 0.080 m is moving toward the bottom of the screen with a speed of 0.017 m/s (see the drawing). The loop is leaving a region in which a 2.3-T magnetic field exists;
diamagnetism is caused by:
Light strikes a sodium surface, causing photoelectric emission. The stopping potential for the ejected electrons is 3.2 V, What is the wavelength of the incident light
A flat circle of radius 20 cm is placed in a uniform electric field of magnitude 6.6×102N/C, What is the electric flux through the circle when its face is at 30 to the field lines
express what would be the frequency of vibrations.
Calculate the efficiency of a fossil-fuel power plant that consumes 450 metric tons of coal each hour to produce useful work at the rate of 900 MW
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.95 V, What emf and current are induced in the square coil
A moving particle encounters an external electric field that decreases its kinetic energy from 9520eV to 7060eV as the particle moves from position A to position B. The electric potential at A is -55.0V and the electric potential at B is +27.0V. ..
The force F3, 6.17 N, acts on the block at an angle of 152.02 degrees. what is the work done by the force F3
Two circular disks spaced 0.50 mm apart form a parallel-plate capacitor. Transferring 1.50 ×109electrons from one disk to the other causes the electric field strength to be 2.90 ×105N/C
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
A hook in boxing primarily involves horizontal flexion of the shoulder, while maintaining a constant angle at the below. What is the average speed of the fist during the hook
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