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A car travels along a circular path of radius 500 m. The speed of the car can be expressed as v = 0.0002 s2 m/s, where s is the distance of the car travels along its path. Determine the normal and tangential accleration of the car when it has traveled a distance of 200 m.
a straight duct with a radius of 40 cm contains a fan that is operating at steady state. the fan draws air from the
What are the design implications for the location and positioning of solar cells? Explain why the use of solar cells might be more appropriate in some regions of the country.
the 50-kg homogeneous smooth sphere rest on the 30 degree incline A and bears against the smooth vertical wall B. calculate the contact forces at A and B.
two sheets of a 1040 steel are joined together with an aluminum rivet. discuss the possible corrosion cells that might
a simplified gear system for a mechanical watch is shown. knowing that gear a has a constant angular velocity of 1
a single-pass cross flow heat exchanger shown below is utilized to transfer heat from fluid a to fluid b. right after
A 5v belt drive system operates an input speed of 1250 RPM at the small sheave. The driving sheave has a pitch diameter of 6.000 in, and the driven sheave has a pitch diameter of 19.000 in. If an optimum center distance of 47 in is specified.
a fan that can provide air speeds up to 50ms is to be used in a low-speed wind tunnel with atmospheric air at 25 degc.
Investigating A Dynamic Movement in Polar Coordinates
Two bars, one having a circular section of radius b, the other an elliptic section with semiaxes a,b. For equal angles of twist, which bar experiences the larger shearing stress?
the work on a system with a mass 100 lbm is known to be 10 btus. if there is no change in potential energy and the
steam is contained in a rigid container at an initial pressure of 100 psia and 600 f. the pressure is reduced to 10
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