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Consider a magnet moving in a coil of N, turns. This system can be modelled as mass spring damper system. The damping coefficient consist of both mechanical and electromagnetic damping. How can I calculate the mechanical electromagnetic damping?
A construction crew lifts approximately 560 lb of material several times during a day from a flatbed truck to a 32 ft rooftop. A block and tackle system with 50 lb of effort force is designed to lift the materials.
The nominal breaking strength of the rope is 10,000 lbs. Calculate how much payload this assembly can allowably pick up. Show your work.
A cylindrical specimen of this alloy 24 mm in diameter and 186 mm long is to be pulled in tension. Calculate the force necessary to cause a 0.0119 mm reduction in diameter. Assume a value of 0.33 for Poisson's ratio.
Estimate the torque required at the base of a flag pole to hold it in place in a 30mph wind. Assume the flag pole is a vertical cylinder with D=10cm and L=10m, and assume the wind drag force is uniform along the pole.
If the efficiency of the turbine in converting the mechanical energy given up by the fluid to the turbine shaft is 89% (nt = 0.89), calculate the friction loss in the turbine in J/kg.
If the critical resolved shear stress is 10 MPa, what is the yield strength?
the traveling crane consists of a 5-m-long beam having a uniform mass per unit length of 20kg/m. The chain hoist and its supported load exert a force of 8 kN on the beam when x=2m. draw the shear and moment diagrams for the beam.
Determine the surface temperature of the wire during a windy day when the air temperature is 10°C and the wind is blowing across the transmission line at 50 km/h.
How does artificial aging affect KIC in a 7075 alloy? Which is likely to have a higher KIC: 7075-T6 or 7075-T7? Explain.
What are the design implications for the location and positioning of solar cells? Explain why the use of solar cells might be more appropriate in some regions of the country.
Find the diameter of a pipe to convey the superheated steam flowing into the mixing process if the speed of the steam is 20m/s and also ascertain the condition of the resulting mixture.
Determine the amount of steam produced per hour, if the total heat loss is 10% of the heat available for steam raising - What would be the new heat transfer area if the fluids were in parallel flow
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