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The wavelength of a certain sound source is 2.4 mm in air and the speed of sound in air is 345 meter per second. Estimate the frequency of this sound source?
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 3.30 m/s. find the distance the sled moves before it stops
a 44 mh inductor is connected to 220 v 50 hz ac supply. determine the rms value of the current in the
In a head on collision, a 4,000 kilogram truck going 10 m/s east strikes a 1,000 kilogram automobile going 20 m/s west. Find how much kinetic energy was lost in the collision
A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, then 1.0 km north, What was the bear's average velocity
A fox fleeing from a hunter encounters a 0.795 m tall fence and attempts to jump it. By how much does the fox clear the fence
In a science fiction novel , a starship takes 3 days to travelbetween two distant space stations according to its own clocks. How fast did the starship travel, relative to the spacestation
A stunt pilot weighing 0.70 kN performs a vertical circular dive of radius 0.80 km. What force does the plane exert on the pilot
a ray of light from the coin travels to the surface of the liquid and is refracted as it enters into the air. how fast is the light traveling in the liquid
A 2500ml - flask is initially open to air at 24 celsius and 1 atm pressure. It's then closed and immersed in boiling water. What's the maximum pressure reached in the flask
The positively charged plate of a parallel-plate capacitor has a charge equal to Q. When the space between the plates is evacuated of air, What is the dielectric constant of the material
The hoist has a 5-year life and an estimated salvage value of $1,394. Installation costs were $2,841, and freight charges were $852. Carleton uses straight-line depreciation.
a basketball player throws a basketball m 1 kg straight up with an initial velocity of v0 6.5 ms. the ball leaves his
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