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The velocity of a particle moving in the x-y plane is given by 6.12i + 3.24j m/s at time t=3.65s. Its average acceleration during the next 0.02s is 4i+6j m/s^2. Determine the velocity v of the particle at t=3.67s and the angle theta between the average acceleration vector and the velocity vector at t=3.67 s.
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.
the density of liquid water at 25 c is 997 kgm3 and the specific gravity of solid water ice at 0 c is 0.98. 100 kg of
Determine the heat transfer coefficient for laminar flow over this cylinder. First, at your discretion, select an available set of experimentally obtained data from the literature. Then, this would provide you with a set of Reynolds numbers.
at a certain event 16 people attend and 5 will be chosen at random to receive door prizes. the prizes are all the
Cracks propagate when the stress intensity factor exceeds a critical value and describe the fracture behaviour of the insulation tape loaded with a small crack.
a engineer designs a heat engine using flat-plate solar collectors. the collectors deliver aeat at 70 degrees c and
Why do you suppose that service jobs have lower productivity than manufacturing jobs? How can a company gain a competitive advantage by having higher productivity than its compettitors have?
the acceleration of a particle is defined by the relation akt2. a knowing that v-8fts when t0 and that v 8fts when t2s
power system assignmentthe assessment to design a substation and the associated protection system. the transformer is
an automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the natural frecuency of the automobile in the vertical direction by assuming dumping to be negligible.
Define your system to be the gas in the cylinder, and calculate the work transferred from the surroundings to the system from this expansion. Note that the pressure will change as the expansion takes place.
in a railroad switchyard a 50 ton freight car is sent at 7.4 mih toward a 27 ton car that is moving in the same
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