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Consider a pipe with a length of 54.5 cm. If the temperature of the air is 19.5 oC and the pipe is closed in one end and open in the other, what is the frequency of the third harmonic for the pipe?
A uniform disk turns at 3.9 around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk . They then both turn around the spindle with their centers s..
A bottle containing 2 kg of water at a temperature of 15°C is placed in a refrigerator where the temperature is kept at 5°C. How much heat is transferred from the water to cool it to 5°C
a sinusoidal wave traveling on a string is moving in the positive x-direction. the wave has a wavelength of 4m a
A 3.0-kg block is traveling in the -x direction at 5.0 m/s, and a1.0-kg block is traveling in the +x direction at 3.0 m/s. (a) Find hte velocity Vcm of the center of mass.
Fish are hung on a spring scale to decide their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale? What is the mass of a fish that stretches the spring 5.50 cm?
A 6.43 kg ball is thrown upward with an initial speed of 14.34 m/s. Ignore air resistance when answering the following questions. What is the ball's initial kinetic energy
What is the process of memory from perception to retrieval
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. what must be the length of the aluminum rod so that the temperature at the junction is 50°C
A spaceship travels at a constant speed from earth to a planet orbiting another star. How far away is the planet, according to observers on earth
a 2.50muc charge is located at a point a at the origin and a -6.00 muc charge is located at point b at 20.0cm on the
In a series R-L-C circuit, L=.165H C=85.0uF and the voltage amplitude of the source is 200V. What is the resonace angular frequency of the circuit
An astronaut travels to the nearest start system. 10 light years away, and returns at a speed of 0.5c. How much has the astronaut aged relative to those people remaining on Earth?
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