What is the frequency heard by the observer
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer? Assume the speed of sound in air to be 340 m/s.
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A projectile is launched from the top of a cliff above level ground. At launch the projectile is 35 meters above the base of the cliff and has a velocity of 50 meters per second at an angle 37° with the horizontal. Air resistance is negligible
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer?
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A 3.3 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 480 , goes completely through the block, emerging at a speed of 200. What is the speed of the block immediately after the bullet exits?
How many grams of MgCl3 are needed to make 1.5L (1500ml) of a 15% MgCl3 solution?
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