Engineering, 19.12.2019 02:31 trint4
Estimates the reynolds number of a soccer ball travelling at 40 miles/hour to be around 3.0 x 105. at this condition, the drag coefficient on the ball is estimated to be about 0.25. calculate the drag force (in lbf) on the ball assuming the density and viscosity of air are respectively 0.135 lbm/ft3 and 0.363 x10-6 lbf-s/ft2. the diameter of the ball is 0.75 ft. 20 points.
Answers: 1
Engineering, 04.07.2019 16:10
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
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Estimates the reynolds number of a soccer ball travelling at 40 miles/hour to be around 3.0 x 105. a...
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