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The figure shows the inside of an instrument that is used to measure the amplitude Y of the vertical ground motion y(t) = Y sin ωt. The L-shaped arm is in equilibrium in the position shown. Derive the equation of motion for the mass m in terms of z, the displacement of the mass relative to the frame. Assume small displacements and neglect all masses except m.
1. A fuel oil having an analysis on a mass basis of 85.7% C, 14.2% H, 0.1% inert matter burns with air to give products with a dry molar analysis of 12.29% CO2, 3.76% O2, 83.95% N2. Determine the air-fuel ratio on a mass basis.
the 20-lb car is released from rest at time t0 on the inclined surface. the force p 8t lb acts on the cart where t is
consider an ideal simple gas turbine cycle. for a net power output of 10000 horse power an inlet air temperature of
Determine the number of pumping stations needed to traverse the total distance. Sketch your design. What would be an advantage to changing the pipe to Schedule 80 or Schedule 160?
the heat flux through a 1-mm thick layer of skin is 1.05 x 104 wm2. the temperature at the inside surface is 37degc and
Estimate the mean and median value of your investment after 50 years. Explain the large difference between the estimated mean and median.
A stationary gas turbine power plant operates on a simple ideal Brayton cycle with air as the working fluid. The air enters the compressor at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is transferred to the air at a rate of 35,00..
A helmet has an open cell polystyrene foam liner that is design to absorb the kinetic energy from an impact. The Foam has a relative density of 10% and the young module of the solid polystyrene that the foam is 1.5Gpa. How much energy per volume in J..
A reversible engine ‘A' absorbs energy from a reservoir at temperature 1 T and rejectsenergy to a reservoir at temperature 2 T .
1 what cooling air flow rate would be required to maintain a space at 72 degrees f if it had a sensible cooling load of
1. Acetylene (C2H2) enters a torch and burns completely with 110% of theoretical air entering at 748F, 1 atm, 50% relative humidity. Obtain the balanced reaction equation, and determine the dew point temperature of the products, in 8F, at 1 atm...
A system experiences a heat transfer into the system of 50 Btu and does work against the surroundings of 2100 ft-lbf reducing its horizontal velocity from 2 fps to 1.5 fps. The mass of the system is 3 lbm. Determine the amount if change in internal e..
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