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Q. Two loudspeakers are placed next to each other and driven by the same source at a frequency of 570Hz. A listener is in front of the speakers and on the line separating them, thus creating a constructive interference. What distance would one speakers be moved back away from the listener to make destructive interference at the listener's ear? (Speed of sound = 340m/s)
How high is the sun above the horizon to a fisherman. What is the coefficient of kinetic friction between tires and pavement.
If both the ring and the rod are warmed together, what temperature must they both reach so that the ring barely slips over the rod.
A 66 {rm kg} skier speeds down a trail, as shown in the figure . The surface is smooth and inclined at the angle of 22 ^circ with the horizontal. Find the magnitude of the net force acting on the skier.
Two carts with masses of 4.80 kg and 2.78 kg move toward each other on a frictionless track with speeds of 4.94m/s and 3.17m/s respectively. The carts stick together after colliding head-on. Find out the final speed.
A passenger train is travelling at 32 m/s when the engineer sees a freight train 384 m ahead of his train travelling in the same direction on the same track. The freight train is moving at a speed of 5.7 m/s.
You hang the rod vertically and attach a 74 kg mass to the bottom, and you observe that the bar becomes 1.74 cm longer. From these measurements, it is possible to conclude the stiffness of one interatomic bond in titanium.
What is the least speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track
What is an amplitude at a point where two pulses are crossing if the end at which reflection occurs is free to slide up and down.
A baseball pitcher throws a fastball at a speed of 35m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 3.7 m. estimate the acceleration, assuming that it is constant ..
A bucket of water is whirled in a vertical circle of radius 90cm,What is the least speed that will keep the water from falling out.
A harmonic wave travels in a wire with amplitude 6.05 mm, wavelength 0.451 m, and frequency 462 Hz. What is speed with which the wave travels.
A 0.39 kg iron horseshoe that is initially at 745°C is dropped into a bucket containing 24 kg of water at 46°C. What is the final equilibrium temperature? Neglect any heat transfer to or from the surroundings.
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