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Determine the magnitude of the resultant force acting on a 5 kg particle at the instant t=2 s. if the particle is moving along a horizontal path defined by the equations r=(2t+10) m and theta = (1.5t^2-6t) rad, where t is in seconds
for a silicon chip at steady state determine the rate of entropy production. the chip is 5 mm on a side and 1 mm in
an 80-lb n boy sitting in a stationary 20-lb wagon wants to simulate rocket propulsion by throwing bricks out of the
collar c moves along a circular guide with radius R=2ft with a constant speed v=18ft/s. at the instant, the bars AB and BC are vertical and horizontal respectively. Letting L=4ft and H=5ft, determine the angular acceleration of the bars AB and BC ..
thermopane window consists of two 6 -mm thick glasses separated by a stagnant air space of thickness 6 mm. the thermal
we want to achieve a concentration of 0.5wt of carbon at a depth of 0.2 mm below the surface of the slab of a metal.
we have a process air stream that is 30 mole dichloromethane and 70 air at 80 of. the inlet flow rate of the gas stream
the combination of water and co2 molecules in the atmosphere accounts for approximately 150 wm2 in greenhouse heating.
A 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is suddenly removed. Determine (a) the Maximum velocity reached by the 0.5-lb block, (b) the maximum height reached by the..
determine the maximum velocity to which water can be accelerated by the nozzles before striking the turbine blades.
a robotic wheeled vehicle that contains science instruments is used to study the geology of mars. the rover weighs 408
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 6-km cast-iron new pipeline conveys 320 lsec of water at 30 degrees celsius. if the pipe diameter is 30 cm compare
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