Japeth entered the freeway at exit 90. He drove west and exited the freeway at exit 241. He then got back on the freeway and drove east to exit 91. The total trip took 8 hours. What was Japeth's average speed?*

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.