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Q1. A pipe open only at one end has a fundamental frequency of 241 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off the portion of the open end. At the present, when both pipes vibrate at their fundamental frequencies, a beat frequency of 13 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 343 m/s.
Q2. A diver 50 m deep in 10 degrees Celsius fresh water exhales a 1.2 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 35 degrees Celsius? Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
A uniform cord of length 4.0 cm and mass 26 g is initially stuck to a ceiling. What is the change in the gravitational potential energy of the cord
How long after the arrow was shot must the apple be dropped, in order for the arrow to pierce the apple as the arrow hits the tree.
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
A stone is dropped from a cliff; 2.47 s later another stone is thrown downward with an initial speed of 35 m/s. Find the height of the cliff
In fact, it is found that if the heavier mass is given a downward speed of 0.21 m/s, it comes to rest in 6.7 s. What is the average frictional torque acting on the pulley
Most dentist in the United States are make as the majority of nurses are female. These differences show how different cultures define.
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. how fast will the disk be turning
Find the value of Q that would make the thickness of the equivalent body 0.1 times its length (i.e the value of y at the dividing streamline at x=0 is 1/10 of the x coordinate at the aft stagnation point.).
System A has a temprature of TA = 300K and Ua = 30 MJ/kmol. System B has tempratuer TB = 200K and UB = 60MJ/kmol. Describe (qualitatively) the final (equilibrium) state of the combined system
Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time, Who will have the greater momentum at the bottom
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
Two guitarists attempt to play the same note of wavelength 6.50cm at the same time, What is the frequency of the beat these musicians hear when they play together
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