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An open organ pipe has its fundamental frequency at 320 Hz. The first overtone of a closed organ pipe has the same frequency as the first overtone of the open pipe. How long (in meters) is the closed pipe? Use 331 m./s. for the velocity of sound in air.
A child ties a rock to a string and whirls it around in a horizontal circle. Find the period of its uniform circular motion
A 0.50 microF and a 1.4 microF capacitor (C1 and C2, respectively) are connected in series to a 15-V battery, Calculate the potential difference across each capacitor
A child throws a ball downward from a tall building. Note that the ball is thrown, not dropped and disregard air resistance. What is the acceleration of the ball immediately after it leaves the child's hand
Consider the Earth and a cloud layer 600 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
A second force F2 is added to F1 . The resultant of the two vectors has a magnitude of 370 newtons and points along the (a) east/ (b) west line. Find the magnitude and direction of F2.
The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. Explain how high does the top of the ice block float above the water level?
A 48000-kg space probe is traveling at a speed of 12000 m/s through deep space. What is the final speed of the probe
If the speed of the wave is 10 percent less in the organ than in the medium above, determine the depth of the tumor below the organ's surface.
A common capacitor found in the lab is in the form of a cylinder of length 2.5 cm. What is the value of the capacitance
A plane is pointed in the positive x direction and is flying with an speed of (200, 0, 0) m/s relative to the air. Find the velocity of the plane with respect to the ground
A 10kg mass that is moving at 15m/s hits a stationary 10kg mass. The collision is elastic. what is the total momentum BEFORE the collision
In the Bohr model of the hydrogen atom the electron orbits the proton in a circular orbit. Calculate the orbital frequency of the electron
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