5. Weights of 1,000 Football Players were collected and found to have a mean of 290 pounds and a standard deviation of 9. Create a Normal Distribution curve for this data below. 34% 34% A 2.35% 2.35% 0.15% 13.5% 13.5% 0.15% -3 - 2 -1 0 2 3 DODO a) What weight is 2 standard deviations below the mean? 0001000 b) What weight is 1 standard deviation above the mean? c) What interval of weights account for 68% of the data? d) What percentage of weights fall between 272 pounds and 308 pounds?

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.