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Consider a sphere with a diameter of 20 mm and a surface temperature of 60°C that is immersed in a fluid at a temperature of 30°C and a velocity of 2.5 m/s. Calculate the drag force and the heat rate when the fluid is
(a) water and
(b) air at atmospheric pressure. Explain why the results for the two fluids are so different.
suppose that the failure time distribution for a product can be approximated by a normal distribution with mu 3 and
What do we mean by the term torque reaction? A right angle nut runner is used to produce 500 ft-lb of torque on a bolt having a 7/8 -9 UNC thread.
Consider the hot water pipe of Problem 7.56, but under convection coefficient as a function of only !iT = Ts - Too, where Ts is the sensor temperature. Evaluate properties at an appropriate film temperature and show what effect this approximation ..
water is used in a regenerative power cycle where the standard rankine cycle is augmented with one closed feed water
helium has the lowest normal boiling point of any of the elements at 4.2 k. at this temperature the enthalpy of
water is the working fluid in as ideal rankine cycle. saturated vapor enters the turbine at 16 mpa state 1 and the
How well can you can predict overhead costs on the basis of these variables with a linear regression equation? Why might you be disappointed with the results?
1.3 kg block b is moving with a velocity v0 of magnitude v02ms as it hits the 0.6-kg sphere a which is at rest and
Cantilever Beam with maximum tensile strength. A cantilever beam is to be made using a symmetrical I section beam. The cantilever is to carry a load of 40kN at a distance 2.5m from the fixed end. The situation allows for a depth of I beam to be no..
Steam enters an adiabatic turbine at 5 MPa, 650°C, and 80 m/s and leaves at 50 kPa, 150°C, and 140 m/s. If the power output of the turbine is 8 MW, determine (a) the mass flow rate of the steam flowing through the turbine and (b) the isentropic effic..
for a vertical cylinder with an electric heater 2500watt at the basean inletlower part of cylinder with cold water at
What pressure difference is generated to provide fresh air within the burrow?
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