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In checking a stereo speaker system for balance, the left and right channels are found to differ by 3 dB at SPL = 80 dB and a frequency of 1000 Hz. Calculate the intensity of sound for each speaker expressed in W/m2 and comment on the results.
A plane can fly 299 mph in still air. If it can fly 180 miles downwind in the same amount of time it can fly 119 miles upwind, find the velocity of the wind.
air initially at 150 kpa 500k and occupying a volume of .02m3 undergoes two processes. first the air undergoes a
two forces f1 and f2 with magnitudes 40 and 55 newtons respectively act on an object at the origin. the angle f1 makes
air at 1 atm and 300 k with a flow rate of 0.2 kgs enters a rectangular 10-by-20-cm duct that is 250 cm long. if the
flow around a brindge pier is studied using a modeal at 110 scake. when the velocity in the model is 0.9 ms the
water flows through a 20-cm commercial steel pipe at 20 degrees celsius. the flow rate is 80 liters per second and
a refrigerator uses refrigerant-134a as the working fluid and operates on an ideal vapor-compression cycle between 0.12
You are throwing a dinner party and decide to prepare instant Chinese noodles (chicken flavor) for all your guests. From the cooking instruction on the back of the package, you determine that you will need to bring 44 cups of water to a boil for your..
Write a description of the generation of the following with reference to diagrams. Dry saturated steam. Super heated steam.
Find the tension in the middle of the rope
The data listed below are claimed for a power cycle operating between hot and cold reservoirs at 1500 K and 450 K, respectively. For each case, determine whether the cycle operates reversibly, operates irreversibly, or is impossible.
the gate in the is hinged at H.the gate is 2 m wide and normal to the palne of the diagram.calculate the force required to hold the gate closed.
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