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Determine the frequency response and [M( ω ) and phiv (ω )] for an instrument having a time constant of 10 ms. Estimate the instrument's usable frequency range to keep its dynamic error
Determine the minimum acceptable cable cross-sectional area. If the cable consists of 10mmm strands, how many strands are needed?
Determine the pressure in the gas main if the pressure in the 1-in. pipe is to be 6-in. of water greater than atmospheric pressure.
The mixture occupies a volume of 0.05 m^3. Determine the mases of saturated liauid and vapor present, each in kg. Be sure to include a t-v diagram.
Calculate the diffusion coefficient for copper in aluminum at 600 degree Celsius. Preexponential and activation energy values for this system are 6.5 x 10^-5 m^2/s and 136,000 J/mol, respectively.
Calculate the overall efficiency, the heat rate [MW], and the total fuel rate [kg/s] of a combined-cycle power plant (1) if no supplemental firing is used.
Obtain the equation for the streamline passing through the point (2,5). b) At t=2s , what are the coordinates of the particle that passed through point (0,4) at t=0.
Cooling water enters the tubes at 15°C, 1bar and exits at 35°C, 1bar. Determine the mass flow rate of the cooling water, in kg/h, for steady operation.
Compute the corresponding maximum allowable internal moment M that can be applied to the beam.the moduli of elasticity for concrete and steel are 25GPa and 200GPa, respectively.
An electric moter drivers an axial fan assuming that the desired air velocity (65degree F) existing the fan is 50mph and the fan duct diameter is 11 inches.
Determine the work done during the process (a) by plotting the process on a P-V diagram and finding the area under the process curve and (b) by performing the necessary integration.
A partitioned chamber that is well insulated has ½ filled with H2O at 500 deg F and 50 psia and the other ½ a vacuum.
Heat transfer occurs until the volume on the inside of the cylinder is 0.00438 m3. What is the work and heat transfer for this process? Show the process on at T-v diagram.
Obtain an algebraic expression for the speed reached by the weapon in level flight. Determine the minimum fraction of the initial mass of the weapon that must be fuel to accomplish the desired accel
It is assumed that the wire surface temperature is constant at 400 K and is not affected by the insulation. Find the heat loss per unit length of the wire with the insulation present.
How many raindrops are in each cubic yard of air approximately ten feet above the ground in an open field at any given instant?
An airplane wing modeled as a spring-mass system with natural frequency 40 Hz is driven harmonically by the rotation of its engines at 39.9 Hz. Calculate the natural frequency and the driving frequ
Determine the amplitude and phase when a force F = 2cos3t acts on the system. The answers are 0.797 cm and 51.43 degrees.
If this same system is excited by a harmonic force of frequency 4 cps, what will be the percentage increase in the amplitude of forced vibration when the dashpot is removed?
Determine the magnitude of the average friction force exerted on the collar when the velocity of the collar at C is 2.78 m/s and the spring has an unstretched length of 0.60 m.
What is happening to the entropy of the potato when it cools? Does this violate any fundamental principles relating to entropy?
If the pressure 3 p is doubled, how will this affect the work done between states 2 and 3? Assume that the process from 2 to 3 remains isothermal, and the process from 3 to 1 is no longer isometric.
The sales director wants to "modernize the design by making all the corners "sharp" and the walls "flat". Is that a good idea? Why?