A circular cylinder of mass m, diameter D and length L is pulled vertically upwards within a cylinder of diameter of D + 2t by a force of magnitude P. If the mass moves with a constant velocity, U, and the cylinders are separated by a fluid with viscosity , what is the value of P? Is it: P= #DLUμ tmg P = #DLUμ t P= P = mg P= #DLUμ t DLUμ t - mg + mg

At a given instant, the blood pressure in the heart is 1.1 x 104 Pa. If an artery in the brain is 0.38 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow. Number Type your answer here Units Choose your answer here

! 7 7. The tank shown in the figure is very large and open to the atmosphere at the top. Find the speed of the liquid leaving the pipe at point (1) if the height h = 38.0 m. m/s A N @ 2 W S X H command w茶 3 If zee!! ZEE! 25 E D C C 4 R F V % G Search or type URL 2 5 10 111332 1332 jj1332 jj1332 jj1332 19 T G 6 B MacBook Pro Y 0 H & 7 1332 1332 j†13322261332 133 N U J * 00 8 1332 jj1332 jj1332 jj1332 jjl M - - jj1332 jj1332 jj1332 jj1332 jj12 → K ( O 9 V j1332 jj1332 1332 j H I < * O ) O L command 332 1332 P ^. A : ; option * { [ ? + = C } 1

You have a hose with a diameter of 9.0 cm from whose end the water leaves with a speed v. If a tube is connected to the end of the hose so that the water leaves with a speed of 3v, what must be the radius of the tube? The results of all problems must be expressed in SI units, unless the problem you indicate in other units.

In the process of loading a ship, a shipping container gets dropped into the water and sinks to the bottom of the harbor. Salvage experts plan to recover the container by attaching a spherical balloon to the container and inflating it with air pumped down from the surface. The dimensions of the container are 5.00 m long, 2.35 m wide, and 3.20 m high. As the crew pumps air into the balloon, its spherical shape increases and when the radius is 1.10 m, the shipping container just begins to rise toward the surface. Determine the mass of the container. You may ignore the weight of the balloon and the air in the balloon. The density of seawater is 1027 kg/m³. 434.54 X How does the weight of the container compare to the weight of the water displaced by the container and balloon when the container starts to rise? See if you can express the weight of the water displaced in terms of the density of the seawater and the dimensions of the container and balloon. kg Additional Materials

A 100 mL beaker holds 120 g of liquid. What is the liquid’s density in SI units?

Bowling balls are roughly the same size but come in a variety of weights. Given that the official radius a bowling ball should have is roughly 0.110 m, calculate the weight of the heaviest bowling ball that will float in a fluid of density 1.000 x 10° kg/m³. weight: N

Problem 4: Water flows through a water hose at a rate of Q1 = 660 cm/s, the diameter of the hose is d = 2.13 cm. A nozzle is attached to the water hose. The water leaves the nozzle at a velocity of v = 11.6 m/s. Part (a) Enter an expression for the cross-sectional area of the hose, A1, in terms of its diameter, dj. A1 = 7 8 9 HOME A1 d 4 5 di g h 1 2. 3 P Q1 END m t V1 V2 vol BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Part (b) Calculate the numerical value of A1, in square centimeters. Part (c) Enter an expression for the speed of the water in the hose, v1, in terms of the volume flow rate O, and cross-sectional area A1. Part (d) Calculate the speed of the water in the hose, vị in meters per second. Part (e) Enter an expression for the cross-sectional area of the nozzle, A2, in terms of vị, v2 and A1. Part (f) Calculate the cross-sectional area of the nozzle, A2 in square centimeters.

A cube of density 553 kg/m³ is placed in a fluid with density 1,019 kg/m³. If the cube has sides of length 0.62 m, calculate the volume of the cube that is above the surface of the fluid. m3 ASUS f9 f10 f11 f12 f3 f5 f6 f7 & 4 6 7. T Y U 因 图 96

The average speed of blood in the aorta is 0.330 m/s, and the radius of the aorta is 1.00 cm. There are about 2.00 × 109 capillaries with an average radius of 6.19 μm. What is the approximate average speed of the blood flow in the capillaries?   ?mm/s