Arunner generates 1260 w of thermal energy. if this heat has to be removed only by evaporation, how much water does this runner lose in 15 minutes of running? the latent heat of vaporization of water is 22.6 × 105j/kg.

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.