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A longitudinal standing wave can be created in a long, thin aluminum rod by stroking the rod with very dry fingers. This is often done as a physics demonstration, creating a high-pitched, very annoying whine. From a wave perspective, the standing wave is equivalent to a sound standing wave in an open-open tube. In particular, both ends of the rod are anti-nodes. What is the fundamental frequency of a 2.30 -long aluminum rod?
After watching a news story about a fire in a high rise apartment building, you and friend decide to design an emergency escape device from the top of a building. To avoid engine failure, your friend suggest a gravitational powered elevator. calcu..
A ball of mass m=0.8kg is tied to the end of a string of length L=0.2m and released when the string is held horizontally. How far will the block slide to the right before coming to rest
A deuteron particle (the nucleus of an isotope of hydrogen consisting of one proton and one neutron and having a mass of 3.34×10?27 kg) moving horizontally enters a uniform, vertical, How fast was this deuteron moving just before it entered the mag..
There are two major types of aberration (defective image formation) in lenses: spherical and chromatic. Spherical aberration comes from fact that a spherical lens has the property of focusing parallel rays to a single point only approximately.
Three concentric uniformly charged isolating shells (hollow spheres) of radii 6cm, 10cm, and 20cm each carry a charge. The smallest shell carries 3nC, the medium 4nC, and the largest shell 5nC. Here, concentric means that all three shells share th..
A crate of mass 10.3 kg is pulled up a rough incline with an initial speed of 1.51m/s. The pulling force is 97N parallel to the incline, which makes an angle of 20.3 ° with horizontal. The coefficient of kinetic friction is 0.400, and the crate is..
a sinusoidal wave travels along a stretched point. a point along the string has a max velocity of 1m/s and a max displacement of 2cm
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 292.0 Hz. The tuner hears 4.0 beats per second. What was the original frequency of the untuned string
Suppose a patient having an MRI is immersed in a 3.0 T field along the axis of his body. He then quickly tips his head to the side, toward his right shoulder, tipping his head by 30 degrees in the rather short time of 0.15 s.
q1. the springs of a 1600 kg car compress 5.0 mm when its 65 kg driver gets into the drivers seat. if the car goes over
While preparing tea water in a mine shaft deep underground, you notice that water boils at 105 C. what is your depth below the surface
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
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