What is the decibel level of the remaining pigs
The noise level coming from a pig pen with 231 pigs is 74dB.
Assuming each of the remaining pigs squeal at their original level after 73 of their companion have been removed, what is the decibel level of the remaining pigs?
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Saturated vapor at 8 MPa enters the turbine of a 100 MW (net power) vapor power plant. Draw a sketch of the system and a T-s diagram for the isentropic and actual process.
A balloon vendor at a street fair is using a tank of helium to fillher balloons. The tank has a volume of 150.0 L and a pressureof 120.0 atm at 25 degree celsius. After a while she notices that the valve has not been closed properly.
A sinusoidal sound wave is described by the displacement s(x,t) = sm cos(kx - ωt), where sm = 4.89 μm, k = 12.4 rad/m, and ω = 875 rad/s. Determine the maximum speed of the molecules' oscillatory motion.
A study seeks to determine the effect of temperature on the heart rate of pythons. Data are as follows
Hemiketals can be formed under both basic and acidic conditions while ketals require acidic conditions for their formation. Starting with acetone, provide a mechanism that explains this observation.
Draw a system diagram and label all the components. Number the flow, starting with a 1 at the pump inlet. Draw a T-s diagram for the isentropic and actual process.
At what distance is the music just barely audible to a person with a normal threshold of hearing? Disregard absorption.
Over the last five years in Pa. The variance of new home construction costs has been $108,000. Over the same period of time, based on a sample of 60 new homes , the variance of construction costs in Chester County has been $117,000.
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