Physics Properties Of Matter Level: University
Which fundamental constant links (relates) the temperature of a gas to its pressure and volume?a. Avogadro s number
b. Boltzmann s constant
c. Planck s constant
d. Charles constant
Physics Properties Of Matter Level: University
A siphon is a device that allowes a fluid to seemingly defy gravity.The flow must be initiated by a partial vacuum in the tube as in a drinking straw. (a) Show that the speed at which the water emerges from the siphon is given by V=sqrt (2gh). (b) for what values of y will the siphon work?
Physics Properties Of Matter Level: University
A helium-filled ballon is spherical with a radius of 0.04m. When released it lifts a length (h) of the string and hten remains in equilibrium. Determine the value of h. When deflated the ballon has a mass of 0.25 kg. (hint: only that part of the string above the floor contributes to teh lond being held up by the balloon.
Physics Properties Of Matter Level: University
A light spring of constant k=160 n/m rest vertically on the bottom of a large beaker of water. A 5.00 lg block of wood (density = 650 lg/m^3) is connected to the spring and the block- spring system os allowed to come to static equilibrium. What is the elongation ( triangle) L of the spring?
Physics Properties Of Matter Level: High School
Gases
A tank having a volume of 0.11 m3 contains helium gas at 170 atm . How many balloons can the tank completely fill if each filled balloon is a sphere 34 cm in diameter at an absolute pressure of 1.2 atm ?
Physics Properties Of Matter Level: High School
Gas lows
A gas cylinder of volume 36 liters contains an ideal gas at temperature 27 degrees C and pressure 1720 kPa . Some of the gas leaks , until the pressure falls to 1325 kPa . How many moles of gas leaked , assuming that the temperature remains constant during this process ?
Physics Properties Of Matter Level: High School
Gas lows
A constant volume gas thermometer has a pressure of 7160 Pa at 22 degree C . What would the pressure be for -61 degree C (in Pa) ?
Physics Properties Of Matter Level: High School
Kinetic theory of gases
At what temperature (K) does the average KE of a molecule in an ideal gas equal 3.9 10-21 J ?
Physics Properties Of Matter Level: High School
Gases
2.9 liters of Nitrogen at -2 degree C and 2.3 atmospheres contain how many moles ?
Physics Properties Of Matter Level: High School
Poisenlle's low
Poiseuilles’ law remains valid as long as the fluid is laminar . For sufficient high speed , however , the flow becomes turbulent , even if the fluid is moving through smooth pipe with no restrictions , It is found experimentally that the flow is laminar as long as the Reynolds number Re is less than about 2050 . Re = 2v delta R/0 . Here v, delta , and 0 are , respectively , the average speed , density , and viscosity of the fluid , and R is the radius of the pipe , Calculate the highest average speed that blood ( = 1060 kg/m3 , = 4.0 10-3 Pas) could have and still remain in laminar flow when it flows through the aorta (R = 7.90 10-3 m).
Physics Properties Of Matter Level: High School
Bernoulli's equation
The blood speed in a normal segment of a horizontal artery is 0.15 m/s . An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to one-fourth the normal cross-sectional area . What is the difference in blood pressures between the normal and constricted segments of the artery ?
Physics Properties Of Matter Level: Elementary School
Equation of continuity
he volume flow rate in an artery supplying the brain is 3.90 10-6 m^3/s .
a) If the radius of the artery is 5.40 10-3 m , determine the average blood speed .
Physics Properties Of Matter Level: High School
Archimedes principle
A paperweight , when weighed in air , has a weight of W = 7.1 N . When completely immersed in water , however , it has a weight of Win water = 4.3 N . Find the volume of the paperweight
Physics Properties Of Matter Level: High School
A paperweight , when weighed in air , has a weight of W = 7.1 N . When completely immersed in water , however , it has a weight of Win water = 4.3 N . Find the volume of the paperweight
Physics Properties Of Matter Level: High School
Pascal's law
The hydraulic oil in a car lift has a density of 8.30 102 kg/m3 . The weight of the input piston is negligible . The radii of the input piston and output plunger are 7.50 10- m and 0.125 m , respectively . What input force F is needed to support the 22500 N combined weight of a car and the output plunger under following conditions ?
a) The bottom surface of the piston and plunger are at the same level .
b) The bottom surface of the output plunger is 1.50 m above that of the input piston .
