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A water tank consists of a cylindrical part of radius r and height h and a hemispherical top. The tank is to be constructed to hold 600 m3 when led. The surface area of the cylindrical part is 2 rh, and its volume is r2 h. The surface area of the hemispherical top is given by 2 r2 , and its volume is given by 2 r3 /3. The cost to construct the cylindrical part of the tank is $400 per square meter of surface area; the hemispherical part costs $600 per square meter. Use the fminbnd function to compute the radius that results in the least cost. Compute the corresponding height h.
a medical warmer operates using a heat pump. saturated r-12 enters the compressor at a temperture of -10 c and exits as
an orifice meter is installed in a 12 foot ductile iron pipe carrying water at 60 deg f. a mercury manometer is used to
a bubble of air is suspended in clean water at ambient pressure and temperature.a how do the pressure and the number of
A car has an initial speed of 25 m/s with a constant deceleration of 3m/s^2. Determine the velocity of the car when t=4s. What is the displacement of the car during the 4 second time interval? How much time is needed to stop the car?
a particle m weighing 0.6 lb has slid down a curved track and is currently at the bottom moving to the right with a
When a positron and an electron meet, they are both annihilated into pure energy. Calculate how much energy (in MeV) is released in this reaction assuming that each particle is moving at 50% the speed of light.
a 20 mm id steel tube carries liquid at 10 mpa. assume that the tubing is very long. determine the principal stresses
one kilogram of water fills a 150-l rigid container at an initial pressure of 2 mpa. the container is then cooled to 40
Determine the number of storage bits required in the controller memory so that the accuracy of the joint is as close as possible to, but less than, its repeatability. Use six standard deviations as the measure of repeatability.
the boom derrick supports a suspended 15-kip load. the booms bc and de are each 20 ft long. the distances are a 15 ft
blood flows from the left ventricle of the heart up through the ascending aorta. this system can be modeled as a
saturated liquid water at 25 degrees c is pumped to a pressure of 5 mpa in an isothermal process. the specific work
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