Physics Properties Of Matter Level: University
Law of FloattionA uniform solid cube with edge length 10 cm has a mass of 700g. Will this cube float or sink in water? If it floats, how much of its volume will be submerged?
Physics Properties Of Matter Level: University
PressureA hospital patient receives an IV injection under gravity flow. If the blood (gauge) pressure in the vein is 20.0mm hg above what height should the IV bad be places in order to assure flow into the vein. Your normal blood ( gauge) pressure is expressed as 120/80 ( in mm Hg). Why is the blood pressure in the problem so low?
Physics Properties Of Matter Level: University
PressureThe four tries of an automobile are each inflated to pressure of 29 psi (2.0 x 10^5 pa ). If each trie has a contact area with the ground of 0.02m^2, find the weight of the car.
Physics Properties Of Matter Level: University
FluidHigh cholesterol in the blood can cause fatty deposits called plaques to form on the walls of the blood vessels suppose a plaque buildup reduces the effective radius of an artery by 25 persent. How does this parital blockage affect the speed of blood through the vein?
Physics Properties Of Matter Level: University
Hydraulic liftIn a car lift used by a service station, compressed air exerts a force on a small piston or radius 5 cm. This pressure is transmitted to a second piston of radius 15 cm. What force must the compressed air exert on the small piston to lift a car whose mass is 1200 kg? What compressed air pressure is necessary to produce this force? Is this a reasonable answer? Explain.
Physics Properties Of Matter Level: University
Explain why a wind blowing past the window of a building causes the window to be blown outward rather than inward.
Physics Properties Of Matter Level: University
Law of FloatationA person sitting in a boat floating in a small pond throws a heavy anchor overboard. Does the level of the pond rise fall or remain the same? Explain what if the anchor rope is too short to allow the anchor to reach the bottom?
Physics Properties Of Matter Level: University
A curtain hangs straight down in front of an open window. A sudden gust of wind blows past the window and the curtain is pulled out of the window. Which law principle or equation can be used to explain this movement of the curtain?a. Poiseuilles law
b. Bernoulls equation
c. The equation of continuity.
d. Archimedes principle
e. Pascals principle.
Physics Properties Of Matter Level: University
Bernoullis theoremWhich one of the following statements is false concerning the derivation or usage of Bernoullis equation?
a. The fluid be non-viscous
b.Streamline flow is assumed.
c. The fluid must be incompressible.
d.The work- energy theorem is used to derive Bernoullis equation.
e. Vertical distances are always measured relative to the lowest point within the fluid.
Physics Properties Of Matter Level: University
Bernoullis theoremWhich one of the following statements is false concerning the dervation or usage of Bernoullis equation?
a. The fluid be non- viscous
b. Streamline flow is assumed
c. The fluid must be incompressible.
d.The work-energy theorem is used to derive Bernoulli's equation.
e. Vertical distances are always measured relative to the lowest point within the fluid.
Physics Properties Of Matter Level: University
Fluid in motionWhich one of the following statements concerning fluid streamlines is true?
a. In steady flow streamlines must remain parallel and equally spaced.
b. In turbulent flow two or more streamlines may cross.
c. In turbulent flow streamlines can begin or end at any point.
d. Streamlines are perpendicular to the velocity of the fluid at every point
e. In steady flow the pattern of streamlines does not change with time.
Physics Properties Of Matter Level: University
Law of floationA bolloon is released from a tall building. The total mass of the balloon including the enclosed gas is 2.0 kg. Its volume is 5.0 m3. The density of air is 1.3 kg/m3 will the balloon rise fall or remainstationary and why?
a. The balloon will remain stationary because its density is less than that of air.
b. The balloon will remain stationary because its density is less than that of air.
c. The balloon will rise because the upward buoyant force is greater than its weight.
d. The balloon will fall because the upward buoyant force is less than its weight.
e. The balloon will fall because the downward buoyant force is greater than the upward buoyant force.
Physics Properties Of Matter Level: University
FluidThe density of ice is 0.92 g/cm3 and the density of seawater is 1.03 g/cm3. A large iceberg floats in artic waters. What fraction of the volume of the iceberg is exposed?
Physics Properties Of Matter Level: University
BuoyantcyA balloon inflated with helium gas ( density = 0.2 kg/m3) has a volume of 6 x 10 ~3 m3. If the density of air is 1.3 kg/m3, What is the buoyant force exerted on the balloon.
Physics Properties Of Matter Level: University
FluidA force of 250 N is applied to a hydraulic jack piston that is 0.01 m in diameter. If the piston which supports the load has a diameter of 0.10m, approximately how much mass can be lifted by the load piston? Image any difference in height between the pistons.
