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A source emits sound wavesof frequency 200 Hz, which move through still air at 340 m/s. Thesource moves with a speed of 80 m/s relative to still air toward astationary listener.
a) Find the wavelength of the sound between the source and thelistener
b) Find the frequency heard by the listener?
Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. what is his speed after the collision
If the velocity of a 3.0 kg body changes from v1= (3.0î , 5.0j) m/s to v2= (0î, 7.0j) m/s in a time interval of 2.0s. What is the impulse delivered to the body
The angular speed of an automobile engine isincreased at a constant rate from 1500rev/min to 2500 rev/min in13 s. How many revolutions does the engine make during this13 s interval
Use the Rydberg equation to calculate the wavelength in nm of the light emitted, What is the color of the light emitted
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
What assumptions can be made about the radiation per unit areaof a blackbody? Is there a standard area of black body? What value for emissivity
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.210 . The magnitude of the angular acceleration is 0.890 . Both the the angular velocity and angular accleration are directed clockwise.
A bucket of water of mass 14.8kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.290m with mass 12.5kg. What is the time of fall
A 20.0-kg box rests on a horizontal surface. The coefficient of static and kinetic friction between the box and the surface are 0.30 and 0.10 respectively, find the friction force between the box and the surface
An entertainer, when performing a bubble trick, forms one bubble inside another. The surface tension of the bubble liquid is ?=0.04 N m-1. calculate the gauge pressure in the inner bubble
A police officer is driving due north at a constant speed of27 m/s relative to the ground when shenotices a truck on the east-west highway ahead of her, driving we stat a high speed.
A 108m long train starts from rest (at t=0) and accelerates uniformly. At the same time (at t=0), a car moving with constant speed in the same direction reaches the back end of the train. find the cars speed and the trains acceleration
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