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The angular motion of the forearm of a human hand carrying a mass is shown in Fig. 2.102. During motion, the forearm can be considered to rotate about the joint (pivot point) O with muscle forces modeled in the form of a force by triceps (c1) and a force in biceps (c2θ) where c1 and c2 are constants and is the velocity with which triceps are stretched (or contracted). Approximating the forearm as a uniform bar of mass m and length l, derive the equation of motion of the forearm for small angular displacements Also find the natural frequency of the forearm.
you are a new engineer at a company that manufactures gas-filled shock absorbers for racing cars. the chief engineer
An air compressor compresses air from 1 bar and 300 K to 5 bar and 540 K. The velocity at the inlet is 70 m/s and the velocity at the exit is 150 m/s. If To = 300 K and Po = 1bar.
the weather drops to 5 degrees celcius t1 so to keep warm you offer to make hot soup for the entire group. the
low-velocity steam with negligible kinetic energy enters an adiabatic nozzle at 300 c and 3 mpa. the steam leaves the
air compressor is a single acting two cylinder unit which takes in an air volume of 0.2 m3s. the initial absolute
The concrete walls and roof of a garage are 15-cm thick. The inside dimensions of the garage are 8-m long, 6-m wide, and 2.5-m high. The door is made of 12-mm thick hardwood and is 6-m wide and 2.5-m high. The garage is modeled in the figure below. O..
the rod assembly is used to support the 250lb cylinder. determine the components of reaction at the ball and socket
steam flows through a small turbine at a rate of 10000 kgh entering at 600 degc and 2.0 mpa and emerging at 0.01 mpa
In working out his principle, Pascal showed dramatically howforce can be multiplied with fluid pressure. He placed a long thintube vertically into a wine barrel, Fig.
Air undergoes a process from T1 = 645 K, p1 = 12 bar to a final state where s2 = s1, p2 = 1 bar. Employing the ideal gas model, determine the final temperature T2, in Fahrenheit. Solve using pr data from the relevant table.
a 80 kg resting person with a constant core temperature near 37 c transfers heat at the resting rate to hisher
how can this goal be achieved? are there alternative solutions which might also be effective?
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