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A ball of mass m is connected to a string of length l and orbiting in a vertical circle at speed v.
a) Write an expression for the tension of the string when the ball is at the top of the circular path in terms of m, l, v, and g.
b) Write an expression for the tension of the string when the ball is at the bottom of the circular path in terms of m, l, v, and g.
If water leaves the basement at 88C, determine the rate of heat loss from the weather.
a 200-m-high 4-m-diameter stack emits 1000 kgs of 100 degree c gases into 5 degree c air. the prevailing wind velocity
a flow is described by velocity field vaibxj where a 2 ms and b 1 1s coordinates are measured in meters. a obtain
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
a stationary radar operator determines that a ship is 19 km south of him. an hour later the same ship is 16 km
a for a rectangular coordinate system we developed the navier stokes equation for vx. now reduce that equation to
a refrigerator uses a compressor that employs r-134a as the refrigerant. determine the power requirement w and
A trapezoidal channel made out of brick, with bottom width 6ft and with bottom slope 0.001
The 160-N weights of the arms AB and BC of the robotic manipulator act at their midpoints. Determine the sum of the moments of the three weights about A.
a tank of 2m3 volume contains saturated ammonia at a temperature of 40c. innitially the tank contains 50 liquid and 50
Treat the locomotive as a particle and assume that the railroad tracks are rectilinear and horizontal.
steam at 160 bar 480degc enters a two-stage turbine operating at steady sate with a volumetricnbspflow rate of 800
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