A pistol of 0.5kg fires a bullet of 0.05kg at a velocity of 300m/s, calculate the recoil velocity of the gun.

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

What equation is used to calculate the weight of an object on a plant ?

Three resistance 4,4 and 6 ohms are joined in the series.the total resistance will be