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An axially symmetric Earth satellite, whose ratio of principal moments of inertia is I/I' = 1.6, precesses about its axis once every 2 s. The spin rate in this state is 0.1 rad/s. Determine the overall rate of rotation and the angle from the axis of symmetry to the precession axis. Then determine the minimum angular impulse that a set of control rockets fastened to the satellite must exert in order to bring the precession axis into coincidence with the axis of symmetry. What is the rotation rate of the satellite at the conclusion of such a maneuver? (Assume that the rockets act impulsively.)
Experimentally determine the measurement resolution for each range and compare it to the expected theoretical resolution. Analyze the various sources of measurement error in your system.
Discuss possible sources of error that can make open-loop control or feedforward control meaningless in some applications.
A plane can fly 305 mph in still air. If it can fly 185 miles downwind in the same amount of time it can fly 120 miles upwind, find the velocity of the wind.
an ideal regenerative steam power cycle operates so that steam enters the turbine at 30 bars and 500 degrees celcius
A piston contains 0.5kg of water. The initial volume of the piston is 0.125 m3 and the pressure inside the piston is 300kPa. The water is expanded to a volume of .31701 m3. The pressure inside the piston remains constant. Determine the amount of heat..
a cylindrical workpart 125 mm in diameter and 900 mm long is to be turned in an engine lathe. cutting conditions are v
determine the reactions at pin locations a b and c as scalar components with a unit of kn for a force and kn-m for a
a particle moves in the x-y plane such that its postion is defined by r2ti4t2jft where t is in seconds. determine the
an automobile can accelerate at the rate of 1.5ms2 and can decelerate at 7ms2. if driver never exceeds the speed limit
the 10-kg sphere c is released from rest when theta0 and the tension in the spring is 100 n. determine the speed of the
due to a poorly designed foundation the statue at point a slowly slides down a grass covered slope. to prevent further
In addition, the natural frequency of the water tank should be greater than 15 Hz. Assume a damping ratio of 0.15 for the column.
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