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A machine part of mass 1.95 kg vibrates in a viscous medium. Determine the damping coefficient when a harmonic exciting force of 24.46 N results in a resonant amplitude of 1.27 cm with a period of 0.20 s. 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?
Calculate the specific heat at constant pressure, and specific heat at constant volume for propane which is compressed at the following inlet condition;
calculate the largest semicircular surface flaw oriented along the axis of the bores that could withstand a fluid pressure of 50MPa.
A 50 hp motor with an efficiency of 0.80 is to be replaced by a newer model motor with an efficiency of 0.90. The motor is expected to operate 3000 hours per year. The cost of electricity in our area is $0.06 per kWhr.
the image for this problem can be found through this link httpimgur.comfqjt0w5 please show all workformulas so that i
problem a tension link shown to the right is used in earth-moving equipment and is subjected to cyclic stresses varying
a fossil-fuel steam power plant operates at about 50 of carnot thermal efficiency. it has been suggested that the air
The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
determine the number of vehicles needed to satisfy the indicated deliveries per hour? Assume that availability = 0.90.
A rigid tank contains water vapor at 200 degrees celcius and unknown pressure. When the tank is cooled to 150 degrees celcius, the vapor starts condensing. Estimate the initial pressure in the tank.
suppose a heat engine is connected to two energy reservoirs one apool of molten aluminum 660degc and the other a block
Determine the Final Velocity, An object whose mass is 1 lb has a velocity of 100 ft/s. How would I determine the final velocity, in ft/s, if the kinetic energy of the object decreases
a thin flat plate is installed in a water tunnel as a splitter. the plate is 0.3 m long and 1 m wide. the freestream
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