Worksheet #8 - Fluids, Oscillations
Instructor: Kaminski
PH105
(2 points) 1.) Sinking car
A car has a total mass of 1739 kg. The volume of air space in the passenger compartment
is 5.00 m$^3$. The volume of the motor and front wheels is 0.750 m$^3$, and the volume of the
rear wheels, gas tank, and trunk is 0.800 m$^3$. Water cannot enter these two regions. The car
rolls into a lake. No water enters the passenger compartment. How much of the car, in cubic
meters, is below the water surface with the car floating?
(2 points) 2.) Water flow through varying pipes
The water flowing through a 2.3 cm (inside diameter) pipe flows out through three 1.1 cm
pipes.
(a) If the flow rates in the three smaller pipes are 27, 18, and 10 L/min, what is the flow
rate in the 2.3 cm pipe?
(b) What is the ratio of the speed of water in the 2.3 cm pipe to that in the pipe carrying
27 L/min?