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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?
After the ambulance passes, the observed frequency of the siren is 493 Hz. Conclude the ambulance's speeds from these observations.
John, a 76-year-old grandfather, had been smoking heavily for 26 years and had a persistent cough. A biopsy of his lung tissue revealed considerable amounts of carbon particles. How might this happen considering the natural cleaning mechanism of the ..
What is speed of the wind what is coefficient of static friction
Find out (a) capacitance and (b) maximum voltage that can be applied to a Teflon-filled parallel- plate capacitor having a plate area of 175 cm2 and an insulation thickness of 0.040 mm.
Define proton-proton chain efficiently
What is diameter of the circle
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
An anchor holding a boat stationary on a river forms a 65 degree angle with the river bottom. The anchor line is 40 meters long. Assume the river has a uniform depth, how deep is the river directly below boat.
A driver in a car travelling at a speed of 58.0 mi/h sees a deer 126 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assume that the deer does not move in the meantime).
From the shape of total energy vs. time plot, what can you conclude about the conservation of mechanical energy in your mass and spring system.
When he reaches equator, the sphere is rotating at how many rpm. A car takes 9 s to go from v = 0 to v = 55 m/s at about constant acceleration.
Establish an average acceleration
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