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The motion of a particle is defined by the equations x=10t-5sint and y=10-5cost, where x and y are expressed in feet and t is expressed in seconds. Sketch the path of the particle for the time interval <=t<=2pi and determine (a) the magnitudes of a the smallest and largest velocities reached by the particle, (b) the corresponding times, positions and directions of the velocity.
a first class lever in static equilibrium has a 50lb resistance force and a 15lb effort force. the levers effort force is located 4ft from the fulcrum. what is the actual mechanical advantage of the system?
Determine the smallest horizontal force required to pull out wedge A. The crate has a weight of 200 and the coefficient of static friction at all contacting surfaces is = 0.7. Neglect the weight of the wedge.
a spring loaded device imparts an initial vertical velocity of 50 ms to a 0.15 kg ball. the drag force on the ball is
Determine a structures natural frequency. Sketch a typical time wave response curve of such a test, then label the impact point and indicate the test piece's natural frequency on the time waveform.
gusset plate Determine the resultant of the three forces tha must be carried by the gusset plate. 30 degrees off of the wall and F1, F1 = 10k, F2 = 12k, F3 = 18k
communication satellites are placed in a geosynchronous orbitthat is in a circular orbit such that they complete one
rod oa rotates counterclockwise with a constant angular velocity of u . 5 radgt s. the double collar b is
A steel tape is used to measure a distance of 20 m at a 10 0C. Assuming that the tape will measure the true distance when the temperature is 20 0C. What would be the indicated distance at 10 0C? What would be the indicated distance at 400C?
a. motorcycle is used to stunt show to go over a valley .if the initial speed at a is u ms then evaluate a ?the minimum
brayton cycle and gas turbine thermal efficiencya large stationary brayton cycle gas-turbine power plant delivers a
a piston cylinder assembly containing h2o initially has a temperature of 130degc and a specific internal energy of 700
B) Determine the minimum amount of work [kJ ] required to reach this end state. C) If more than the minimum work is actually used, where does this extra energy go? That is what becomes of the extra energy?
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