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For the deteministic signal y(t)-2+3sin(6πt)+4sin(18πt), sketch the amplitude-frequency spectrum of y(t) a when the sinal is sampled at a rate of 24 hz( indicate by solid lines) and b when it is sampled at a rate of 2 hz indicate by dashed lines. finally c determine the minimum sample period in s to avoid amplitude ambiguity in the amplitude-frequency spectrum.
the collar a is free to slide along the smooth shaft b mounted in the frame. the plane of the frame is vertical.
a residential air-conditioner with cop of 4.0 re-circulates 0.4 kg-das of indoor air that is cooled and dehumidified as
a refrigeration cycle operates continuously and removes energy from the refrigerated space at a rate of 12000 btuh. the
sap from a maple tree contains 5 sugar and 95 wateer on a dry basis. your evaporator will boil away 1.25 kg of water
question 1 a for the reciprocal lattice we know thatexpjg.r 1where g.r 2pit t an integernbsp r lambnc
find the free-fall velocity of an 8.5-in-diameter sphere bowling ball weighing 16 lb falling through the following
an ideal gas at 300 k has a volume of 15 liters at a pressure of 15 atm. calculate 1 the final volume of the system 2
two boys push on the gate as shown. if the boy at b exerts a force of fb 30 lb determine the magnitude of the force fa
consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm 0.31 in.. a tensile
two carts a and b are moving in a straight line with velocities v and 2v respectively. the length of each of the carts
the maximum allowable temperature of a working fluid is usually determined by metallurgical considerations. in a
a. Find the temperature at the interface between the rod and sleeve and on the outer surface. b. What is the temperature at the center of the rod?
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