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A flagpole consists of a flexible, 5.15 m tall fiberglass pole planted in concrete. The bottom end of the flagpole is fixed in position, but the top end of the flagpole is free to move. What is the lowest frequency standing wave that can be formed on the flagpole, if the wave propagation speed in the fiberglass is 2730 m/s (hz)
Suppose that a standing wave on the flagpole gives rise to a sound wave of the same frequency. A person would be able to hear the sound produced by the above standing wave, since the average human being can detect sounds at frequencies between 20.0 Hz and 20.0 kHz. A nearby mouse can only detect frequencies between 1.01 kHz and 90.0 khz What is the lowest flagpole harmonic the mouse can hear?
A meniscus lens is concave on one side and convex on the other. Find the refractive power (diopters) of a meniscus lens
A sample of blood is placed in a centrifuge of radius 12.0 cm. At how many revolutions per second should the centrifuge be operated
You have a sample of Xenon in a rectangular container. The gas exerts a total force of 3.37 N perpendicular to one of the container walls, Calculate the pressure of your sample
the driver of a train moving at 20 m/s applies the brakes when it passes an amber signal. Find the train's acceleration and its speed at the next signal
A 0.70 kg ball is moving horizontally with a speed of 9.7 m/s when it strikes a vertical wall. What is the magnitude of the change in linear momentum of the ball
A 3.00 kg steel ball strikes a massive wall at 10.0 m/s at an angle of ? = 60.00 with the plane of the wall. what is the average force exerted by the wall on the ball
Three wires are connected at a branch point. Find the current carried by the third wire into the branch point
A 16.1-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of the reel is 0.42 kg · m2, and its radius is 0.174 m. how long does it take to completely unwind the hose from the reel
A solar cell generates a potential difference of 0.400 V when a 150.0 ? resistor is connected across it, What is the emf of the cell
The next three problems refer to two point charges A and B on the x-y plane, Find the x-coordinate of the point on the x-axis where the electric field is zero
A large air conditioner has a resistance of 6.0 Ohm and an inductive reactance of 16 Ohm. Find the impedance of the air conditioner
A car with mass 1000kg traveling east at 25 (m/s) runs straight into a truck with mass 1500kg traveling west at 10 (m/s). How far do the vehicles slide
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