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How long (in m) must a flute be in order to have a fundamental frequency of 262 Hz (this frequency corresponds to middle C on the evenly tempered chromatic scale) on a day when air temperature is 24.5°C? It is open at both ends.
Two optically flat glass plates, L = 16 cm long, are in contact at one end and separated by d = 0.020 mm at the other end. What is the number m of bright fringes which are visible
What are the two main mechanisms that the planet Earth uses to balance water that goes up with the water that comes down over Earth.
A nichrome toaster wire, initially at room temperature, carries 2.72A immediately after it's turned on. After the wire heats, the current drops to 2.44A
A -17 nC charge is placed at the origin. Find the strength of the electric field at the position (x, y) = (0cm, 5.0cm)
q1. two point charges q1 -6.7 mu c and q2 3.0 mu c are located between two oppositely charged parallel plates. the
In April 2010, the worst oil spill until that time occurred when an explosion and fire on the Deepwater Horizon left 11 workers dead and began releasing oil into the Gulf of Mexico.
in order to stop a 1500kg car that is originally moving at 25m/s, and if the car stops over a distance of 50m, what average force must act on the car
A 0.49 kg object connected to alight spring with a force constant of 24.8 N/m oscillates on a frictionless horizontalsurface. Determine the maximum speed of the object
It is friction that provides the force for a car to accelerate, so for high-performance cars the factor that limits acceleration isn't the engine; it's the tires. what is the shortest time in which a car could accelerate from 0 to 80 mph
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.30 106 m/s. Find the centripetal acceleration of the electron
An old mining tunnel disappears into a hillside. You would like to know how long the tunnel is, but it's too dangerous to go inside. but, you gure out a way: using your subsonic applier and loudspeaker, you in resonances at 4.5 Hz and 6.3 Hz, and at ..
An astronaut applies a force of 500 N to an asteroid, and it accelerates at 7.00 m/s2. What is the asteroid's mass
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