You are driving a car which is heading 30 ms towards a
You are driving a car which is heading 30 m/s towards a brick wall. You sound a horn which emits at a frequency of 410 Hz when at rest. Length is 41.8 cm. What is the beat frequency that you hear?
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an aluminum cylinder with radius 23cm and length 13cm is heated to 450degc find the net power this cylinder radiates
a husband buys a helium-filled anniversary balloon for his wife the balloon has a volume of 41l in the warm store at
heat is added to an open pan of water at 1000c vaporizing the water the expanding steam that results does 561 kj of
a 10 m long wire carrying a current of 22 a makes an angle of 37 degrees with the earths magnetic field of 051 mt what
you are driving a car which is heading 30 ms towards a brick wall you sound a horn which emits at a frequency of 410 hz
suppose that a 100 cm3 box in the shape of a cube is perfectly evacuated except for a single particle of mass 123 x
the threshold of hearing in air corresponds to a frequency of 1000 hz and an intensity of about 74 times 1013 wm2 when
a water storage tank is an upright cylinder of height 8 m and radius 6 m the storage tank is full of water but is
you sing into a well and find that the well resonates at frequencies of 187 hz and 221 hz with no resonances between
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