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a harmonic sound of wavelength 40cm is resonating in the first overtone of an organ pipe which is closed at one end and open at the other.
a) what is the length of the pipe and?
b) what is the frequency of the wave?
A 100 object is taken to a height of 250 above the Earth's surface. What is the object's mass at this height? What is the object's weight at this height
You throw a ball straight up with an initial velocity of 18.0 m/s. It passes a tree branch on the way up at a height of 7.00 m. How much additional time will pass
Prior to being placed in its hole, a uniform utility pole of weight 5630 N and length 9.1 m makes some nonzero angle with the vertical. Find the magnitude of the force exerted by the ground on the pole
An object of mass m = 5.45kg is suspended from the ceiling of an accelerating truck by a string. What is the magnitude of the tension in the string
A transformer changes the 10,000 V power line to 120 V. If the primary coil contains 750 turns, how many turns are on the secondary
The tension in a guitar string is increased by a factor of two. by what factor does the wave velocity change
Suppose 0.380 kg of water initially at 45.0°C is poured into a 0.300 kg glass beaker having a temperature of 25.0°C. Calculate the final equilibrium temperature of the system
The distance between a proton and an electron is 1m. Calculate the electric force and gravitarional force between them
q1. a solenoid is formed by winding 26.9 m of insulated silver wire around a hollow cylinder. the turns are wound as
A body travels a distance of 3km towards east and 4 km towards north and finally 9 km towards east. what is the total distance travelled and displacement of body.
When you see a traffic light turn red, you apply the brakes until you come to a stop, what was your average velocity during braking
A ball of circumference 72.7 cm and mass 605 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, Calculate the buoyant force on the ball
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