Calculate the volume of water (in cm) overflows when a Pyrex beaker filled to the brim with 250 cm ^ 3 of water at 20 °C is heated to 60 ° C. ** Do not enter the units . Coefficients of Volume Expansion Substance Coefficient \ ( \ times 10 ^ {- 4} V ) / ° C. Water 2.1 Pyrex glass0.09

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

Positrons are spontaneously emitted from the nuclei of