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An avalanche of sand along some rare desert sand dunes can produce a booming that is loud enough to be heard l0 km away. The booming apparently results from a periodic oscillation of the sliding layer of sand-the layer's thickness expands and contracts. If the emitted frequency is 90 Hz, what are:
(a) The period of the thickness oscillation and
(b) The wavelength of the sound?
An oil-filled capacitor has square parallel plates 26{\rm cm} on a side, separated by 0.47{\rm mm}. Find the dielectric constant of the oil
A hydrogen atom makes a transition from the n = 2 level to the ground state (corresponding to n = 1). Find the wavelength and the frequency of the emitted radiation
What is the angular momentum of the moon about the Earth, The mass of the moon is 7.35 x 10^22 kg, the center-to-center separation of the Earth
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar and has a range of 26 m. Suppose the launch speed is doubled, and the projectile is fired at the same angle above the grou..
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.4 Hz. What is the total mass of the wire
Two hockey players of equal mass are sliding across the ice rink in a straight line directly toward each other. What is the final velocity of player 2
Radio waves are diffracted by large objects such as buildings, whereas light is not noticeably diffracted by large objects such as buildings. Why is this?
A 5.0 X 10^4-kg space probe is traveling at a speed of 11,000m/s through deep space. What is the final speed of the probe
A double-decker bus is traveling at 10 m/s. A child in the bus throws a ball horizontally out of the window from a height of 5 m above ground level, with a velocity of 5 m/s in the direction perpendicular to the side of the bus. With what speed does ..
A van der Waals gas undergoes an isothermal expansion from specific volume v1 to specific volume v2. Calculate the change in the specific Helmholtz function for this process.
Assuming no water resistance, a big fish is gliding through the water with momentum 2.0kg m/s. What was the final velocity of the big fish after the meal
The space between the plates of a capacitor is filled with water. By what factor does the water change the capacitance relative to that found when the plates are filled with air?
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