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A sound wave generated by a source of frequency 440 Hz is moving through 25 oC air. The sound wave strikes a solid block of steel and propagates into the steel. What is the wavelength of the sound wave inside the steel. The density of steel is 7.85 g/cm3 and the bulk modulus of steel is 1.6 x 1011 N/m2.
A box slides across a frictionless floor with an initial speed v = 2.2 m/s. What is the shortest length of rough floor which will stop the box
A "1m" mercury germicide lamp emits 50 Watt of 0.2537?m light through its quartz tube. compute the frequency of this light
q1. an audience of 2750 fills a concert hall of volume 35000 m3. if there were no ventilation by how much would
A 110 pound person climbs the benches from the bottom to the top of Sun Angel Track Stadium. Calculate the minimum amount of glucose (in grams) that would need to be oxidized
A force of 210N is applied to a 50.0 kg box. The force is directed 20 degree above the horizontal. The coefficient of kinetic friction between the box and the floor is 0.25 and the box moves 3.00m across the horizontal floor. A) How much work is done..
A tennis ball of mass = 0.068kg and speed = 21m/s strikes a wall at a 45 degree angle and rebounds with the same speed at 45 degrees. What is the magnitude of the impulse given to the ball
Nerve proagation in your body occurs when large electric fields in the cell membranes on neurons (1.0*10^7 N/C) cause ions to move through cell walls
Water at a pressure of 3.8 atm at street level flows into an office building at a speed of 0.55 m/s through a pipe 4.4 cm in diameter. The pipes taper down to 2.6 cm in diameter by the top floor, 20 m above .
A stone is dropped from a high building which is 3630 cm. when the stone has fallen 20m, what the magnitude of the impulse the Earth received
A string is stretched between fixed supports separated by 75.0 cm. It is observed to have resonant frequencies of 288.0 and 384.0 Hz, What is the lowest resonant frequency for this string
A park merry-go-round consists of a 210 kg circular wooden platform 3.90 m in diameter. Four children running alongside push tangentially along the platform's circumference until, starting from rest, the merry-go-round reaches a steady speed of on..
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 5.24 m/s^2.
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