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A hollow log, open at one end, is struck with a stout stick. The hollow cavity of the log is 6 meters long, and the pressure waves that constitute sound travel at 342m/s. What are the frequencies of the resulting first four harmonics?
A parallel-plate capacitor has an area of 4.37 cm2, and the plates are separated by 1.07 mm with air between them. What is the potential difference across the plates of the capacitor
The far point of a nearsighted person is 5.5 meter from her eyes, and she wears contacts that enable her to see distant objects clearly. Determine how high is the image formed by the contacts
A magnetic field of 2.00T is applied to a bubble chamber to make the tracts of protons, what is the momentum of the proton
Superman throws a boulder of weight 2400N at an adversary. What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 14.4m/s^2 ?
A ball is hung from a rope, making a pendulum when it is pulled 5 degrees to the side, the restoring force is 1.0 N. What will be the magnitude of the restoring force if the ball is pulled 10 degree to the side?
Do you agree with IBM's employment response to competition from software development contractors in India, like Wipro, that are expanding into IT consulting services? Why or why not.
A radio antenna broadcasts a 1.0 MHz radio wave with 29 kWof power. Assume that the radiation is emitted uniformly in all directions. (a) What is the wave's intensity 35 km from the antenna? I=___?___W/m^2 (b) What is the electric field amplitude at ..
An aluminum flagpole is 34 m high. (The linear expansion coefficient of aluminum is 23 x 10-6 °C. By how much does its length increase
Graph light intensity, 1/R vs. angle between polarization axes. Note that the light intensity indicator 1/R is an arbitrary unit. If we had a true light intensity meter our light intensity units would be in "lux". how can you be sure they are truly..
Consider the particle that is constrained to move along a curve described by y = x4. Find the equation of motion for small displacement about equilibrium
An object's true weight is 135N. When it is completely submerged in water, what is the density of the object
A 150-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1680 N, Find the acceleration of the rocket
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