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Moist air at standard conditions is at a dry bulb temperature of 80 degree F and a relative humidity of 50%. It is cooled to 50 degree F. Use the psychromtric chart to determine:
a- The energy removed from the air after it is cooled in BTU/lb of dry air
b- The enerdy removed from the air after it is cooled in BTU/ft^3
c-The amount of moisture removed from the air after it is cooled in lb/lb of dry air d-The amount of moisture removed from the air after it is cooled in lb/ft3 of dry air
Calculate the depth h of mud for which the 3m concrete retaining wall is on the verge of tipping about its forward edge A. the density of mud may be taken to be 1760 kg/m3 and that of concrete to be 2400 kg/m3.
A semicircular open channel to be made of concrete is to be designed to carry 1.5 m^3/s at a slope of 0.00085. Manning's roughness coefficient is 0.015. Determine the dimensions of the best hydraulic section.
Describe some of the benefits of physical models and mock-ups. What data are required to measure the following cost-effectiveness, system effectiveness, operational availability, and life-cycle cost?
What mass (in grams) of steam at 100°C must be mixed with 387 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 26.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, ..
Locate the image using both the spherical mirror equation and a ray diagram and identify if it is real or virtual, upright or inverted, and smaller or larger.
Determine the uniform flow depth in a trapezoidal channel with a bottom width of 8 ft and side slopes of 1 vertical to 2 horizontal. The discharge is 100 ft3/s. Manning roughness factor is 0.015 and the channel bottom slope is 0.004.
The peak-hour volumes at two locations were counted and found to be equal. However, the PHFs were .85 at the first location and .60 at the second. Describe the difference between the two locations if t=5 min.
Write down a mass balance expression for a chemical release in a lake given the following: the lake is completely mixed, in-flow and out-flow are equal, degradation of the chemical is occurring through biodegradation (k1) and chemical transformati..
The force of the resulting water jet physically knocks the mildew off. Estimate the maximum force (lbs.) that a water jet from a powerwaher can make on a glass window.
SAMPLE B:has size 10,mean 20 and variance 36 .calculate pooled sample variance
Determine if the bridge would fail under a given load. The truck has two axles and the graph should should begin with 1 axle 7 ft into bridge with the other just reaching the bridge.
You fill a 2 cubic foot wheelbarrow to the top with aggregate. If the specific gravity of the aggregate is 2.548 and 18% of the aggregate is void spaces, how much does the aggregate in the wheel barrow weigh
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