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Two pianos each sound the same note simultaneously, but they areboth out of tune. On a day when the speed of sound is 345 m/s,piano A produces a wavelength of 0.765 m, while piano B produces awavelength of 0.773 m. How much time separates successivebeats?
A physical pendulum is composed of a sphere whose center of gravity is attached to a thin rod. The sphere has a moment of inertia of 2/5 MR2. The period of the physical pendulum is
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. what is its acceleration as it passes through the board
Two identical, small insulating balls are suspended by separate 0.31m threads that are attached to a commone point on the ceiling. estimate the Charge on each ball
A uniform 1.9-kg rod that is 0.90 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
A photographer in a helicopter ascending vertically at a constant rate of 10.5 accidentally drops a camera out the window when the helicopter is 64.0 above the ground, What will its speed be when it hits
A falling skydiver of mass 86.0 kg accelerates downward at 6.7 m/s2. What is the upward force due to air resistance
Two linear waves have the same amplitude and speed, and otherwise are identical except one has half the wavelength of the other, Which transmits more energy
They stick together after the collision and are going 10 m/s after the collision. If they skid for 6seconds before stopping, how far did they skid?
A piece of balsa wood of 0.3 g/cm3 is released after being completely submerged underwater. What is the magnitude of the initial acceleration of the wood
What mass (in grams) of steam at 100 C must be mixed with 175 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 50.0 C.
A building in San Fran has light fixtures consisting of small 2.35kg bulbs with shades hanging from the ceiling at the end of lightthin cords 1.5 m long. If a minor earthquake occurs, how many swings per second will these fixtures make?
The electric field at the point x = 5.00 cm and y = 0 points in the positive x direction with a magnitude of 5.00 N/C. Find the location of the point charge
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