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A tuning fork generates sound waves from a frequency of 246 Hz. The waves travel in opposite directions along a hallway, are reflected by end walls, and return. The hallway is 47.0m long and the tuning fork is located 14.0 m from one end. What is the phase difference between the reflected waves when they meet at the tuning fork? The speed of sound in air is 343 m/s.
A 2-kg book with no initial velocity slides down an inclined plane with an angle of 20 degrees a total of 2 meters. The force of friction does 10 Joules of work, what is the final kinetic energy of the system as the book reaches the bottom of the ..
A 90 kg linebacker running downfield at 10 m/s collides with a 65 kg referee who is at rest. What is the initial kinetic energy of the linebacker
Waterslides are nearly frictionless, hence can provide bored students with high-speed thrills. If Kevin is clocked at 25 m/s at the bottom of the slide, find the work done on him by friction
A gun with muzzle velocity of 1200 ft/sec is fired at an angle of eight degrees above the horizontal. Find the horizontal and vertical components of the velocity
A speedboat moves on a lake with initial velocity vector V1x= 9.27m/s and V1y= -2.83m/s, What are the components of the speedboat's final velocity
NASA has sent a satellite to a new planet with an unknown mass. They place the satellite in geosynchronous orbit at a distance of 4000 km from the center of the planet and measure the period to be 2.0 earth days.
A thin disk of uniform density, mass 5kg and radius :25m, rests on a frictionless table. Find the linear and angular speed of the disk clay system
What will happen when two waves of the same amplitude and wavelength meet at the same place and the same time and they are in phase, What is the shape of the output sound waveform
Two soccer players start from rest, 45 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
Light from a laser (? = 640 nm) passes through a diffraction grating and spreads out into three beams as shown in the figure. Determine the spacing between the slits of the grating
A river of width L moves uniformly with speed v.A canoe is to be paddled at a constant speed c with respect to the river. what is the round trip time
A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 532 and has a speed of 25.5. The motorcycle has a speed of 12.50. What frequency does the motorcyclist hear in this case?
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