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Q1. An organ pipe is 119 cm long. What is the third audible harmonic if the pipe is closed at one end? The speed of sound in air is 345 m/s. in Hz
Q2. A bag of cement weighs 325 N and hangs from three cables. Two of the cables make angles of 1 = 60o and 2 = 25o with the horizontal. If the system is in equilibrium, find the tensions T1, T2, and T3.
Q3. A piece of unpainted wood barely floats in a container partly filled with water. If container is sealed and then pressurized above atmospheric pressure, does the wood rise, sink, or remain at the similar level?
At a temperature of 5800, hydrogen atoms in the solar atmosphere have typical random speeds of about 12. Assume that spectral-line broadening is simply the result of atoms moving toward us or away from us at this random speed, estimates thermal width..
Write down the expression that shows the pressure
A wooden raft has a mass of 67 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
Find out an average acceleration of the motorcycle
Assume that plane continues to fly with the similar velocity
Find out the induced emf in the loop at an instant
What is speed of the resulting ball of clay
What is the time of oscillation of block
A 1040 kg car carrying four 80 kg people travels over a rough "washboard" dirt road with corrugations 2.0 m apart that causes the car to bounce on its spring suspension. The car bounces with maximum amplitude as its speed is 21 km/h. The car now stop..
A wheel (radius = 0.20 m) is mounted on a frictionless, horizontal axle. A light rope wrapped around the wheel supports a 0.50-kilogram object, as shown below. When released from rest, the object falls with a downward acceleration of 5.0 m/s2. What i..
What is speed of the car just before it lands safely
Sam, who's mass is 79 kg, takes off across level snow in his jet powered skis. The skis have a thrust of 204 N and a coefficient of kinetic friction on snow of 0.1. Unfortunatately the skis run out of fuel after only 13 s.
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