A car slows down from -27.7 m/s to
-10.9 m/s while undergoing a displacement
of -105 m. What was its acceleration?
(Unit = m/s^2)

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

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?