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Consider further the piston problem described in given Problem. Use computer assistance to calculate the exact and approximate accelerations of the piston as functions of θ. Compare the exact and approximate formulae (non-dimensionalised by ω2b) by plotting both on the same graph against θ. Show that, when b/c
Problem Figure shows a straight rigid link of length a whose ends contain pins P, Q that are constrained to move along the axes O X, OY. The displacement x of the pin P at time t is prescribed to be x = b sin t, where b and are positive constants with b.
A furnace wall is to be constructed of brick having standard dimensions 9 by 4.5 by 3 in. Two kinds of material are available. One has a maximum usable temperature of 1900°F and a thermal conductivity of 1 Btu/(h ft°F), and the other has a maximum..
A two-story column ABC in a building is constructed with a hollow, square box section (see figure). The outside dimensions are 200 mm x 200 mm, and the wall thickness is 15 mm.
Consider a car having a frontal are of 2.0m^2 with a drag coefficient of 0.35. The mass of the car is 1250kg and the rolling resistance is 1.0% of the weight of the car. At what speed does the aerodynamic drag first exceed the rolling resistance.
a corroded metal plate was found in a submerged ocean vessel. the original dimensions of the plate were 25 x 10 x 5 cm.
Calculate the maximum allowable load P that can be applied at the free end.- Calculate the maximum bending stress in the beam.
a cylindrical metal rod length 2l radius r thermal conductivity k is embedded in a well-insulated wall such that half
The element of an electrical heating device is a cylinder with a diameter of 12 mm and a length of 20 cm. The electrical energy is dissipated at a rate of 800 W. The air at 20°C moves in a cross flow over the heater with a velocity of 8 m/s.
Also, calculate the corresponding radii of gyration r1 and r2, respectively.
If the angular velocity of the drive shaft is constant at 100 rpm, calculate the maximum and minimum velocity of the driven shaft.
A piston-cylinder device contains 3 kg of saturated water vapor initially at 120 degrees Celsius. Heat transfer occurs at constant pressure and the volume increases to 5 times the original volume. Neglect potential and kinetic energy. Determine the a..
An investment pays $6000 at the end of the first year, $4000 at the end of the second year, and $2000 at the end of the third year. Compute the present value of the investment if a 10% rate-of-return is required.
Use the USDA Quick Stats service (http://quickstats.nass.usda.gov//) to compare the 2009 oat yields between New York and California. What additional land would California require to meet the same amount of oat production as New York?
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