While john is traveling along a straight interstate highway, he notices that the mile marker reads 244 km. john travels until he reads the 135 km marker and the retraces his path to the 170 km marker. what is john's displacement from the 244 km marker?

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

What is the temperature in degrees celsius of a substance with a tempature of 49k

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c