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A 22.0 cm-long wire with a linear density of 20.0 g/m passes across the open end of an 84.0 cm-long open-closed tube of air. If the wire, which is fixed at both ends, vibrates at its fundamental frequency, the sound wave it generates excites the second vibrational mode of the tube of air. What is the tension in the wire?
For exercise, a 60 kg athlete runs up a 10-m high hill in 30 seconds. Assume the efficiency of the human body is 25%. Determine her metabolic power
a capacitor is made by taking two sheets of aluminum foil each 0.022 mm thick and placing between them a sheet of paper
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with amplitude of 20.0 cm.
A commuter train blows its horn as it passes a passenger platform at a constant speed of 60.0 m/s. What is the frequency observed by a person on the platform as the train approaches
Suppose that a plane is traveling with a horizontal velocity of vx = +238 m/s at an altitude of y = 1053 m. determine the time required for the package to hit the ground
You are able to hold out your arm in an outstretched horizontal position because of the action of the deltoid muscle. Find the tension in the deltoid muscle
A bungee jumper (m = 66.00 kg) tied to a 48.00 m cord, leaps off a 78.00 m tall bridge. What size impulse is exerted on the bungee jumper while the cord stretches
An object is dropped from rest from a height of 3.9 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth
A car with a total mass of 1.65*103 kg has wheels ofradius 35.0 cm and moment ofinertia 0.760 kg ·m2. Suppose that the wheels were then replaced byoversized wheels of the same shape and made of the same materials,but 49% wider and witha 49% larger..
A copper sheet with length 1.77 m, width 0.587 m, and thickness 1.27 mm is oriented so that its largest surface area is perpendicular to a magnetic field of strength 4.93 T. What is the magnitude of the force on this sheet
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm. what's the balloon's new radius
Show by direct substitution that the wave function corresponding to n=1, l=0, ml=0 is a solution of the schrodinger equation in spherical coordinates corresponding to the ground state energy of hydrogen.
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