5973

Physics Properties Of Matter Level: Misc Level

How much force (in Newtons ) does it take to hold a 55 kg man completely  under water in the ocean ? His density is 929 kg/m3, and the specific gravity of sea water is 1.07.


5972

Physics Properties Of Matter Level: Misc Level

A pice of moon rock reads 20.8 grams on a scale when in air, but 9.4 grams in alcohol (specific gravity=0.79).What is the density of the moon rock in kg/m3?


5971

Physics Properties Of Matter Level: Misc Level

A syringe with a plunger of diameter 1.8 cm is attached to a hypodermic needle with a diameter of 2.6 mm.What minimum force (in N) must be applied to the plunger to inject into a vein where the pressure is 13 torr above atmospheric pressure.


5970

Physics Properties Of Matter Level: Misc Level

What is the change in volume (in cubic meter )of a quantity of sea water at a depth of 1040 m, if its volume was 1 cubic meter at the ocean surface?

Hint: The density of sea water is 1070 kg/m3, and the bulk modulus is 2.3 109 N/m2. Dont forget the sign!


5968

Physics Properties Of Matter Level: Misc Level

A mass of 40 kg is suspended from a steel wire of diameter 1.9mm and length 1 m.How much does the wire strech in mm? Young ,s modulus for steel is 2.0 x 1011 N/m2.


5957

Physics Properties Of Matter Level: Misc Level

When you compare one mole of gold to one mole of water which of the following is true:


5955

Physics Properties Of Matter Level: Misc Level

Both the pressure and volume of a given sample of an ideal gas double. This means that its temperature in Kelvin must:


5953

Physics Properties Of Matter Level: Misc Level

A steel cable spanning a river is 195.950 m long when the temperature is 20 degreee c. What will be its length when temperature drops to 0 degree c? (the coefficient of thermal expansion of steel is 12x106%c


5952

Physics Properties Of Matter Level: Misc Level

The kinetic theory of gases suggest that the average kinetic energy per molecule of an ideal (mono-atomic) gas is:


5951

Physics Properties Of Matter Level: Misc Level

Describe the anomalous thermal expansion property of water and its significance.


5950

Physics Properties Of Matter Level: Misc Level

By how much will a slab of concrete 18m long contract when the temperature drops from 24c to -16c? (The coefficient of linear thermal expansion for concrete is 12x10 per degree c)


5947

Physics Properties Of Matter Level: Misc Level

The principle on which a venturi meter works is called:


5941

Physics Properties Of Matter Level: Misc Level

A force of 1.0 x 103 N is applied to a steel rod of length 1 m and a circular cross section of area 10 cm2: Find the elongation of rod.Young,s modulus for steel are 2.0 x1011Pa.


5939

Physics Properties Of Matter Level: Misc Level

Water is pumped through a pipe to a tank at the top of a building. The pressure of the water at ground level is 2.2x105 Pa and at the tank.the pressure is atmospheric. If the diameter of the pipe is the same throughout, find the height at which the tank is located. Atmospheric pressure may be assumed as 1.0 x105 Pa and g as 9.8 m/s2.


5933

Physics Properties Of Matter Level: Misc Level

A log of wood is floating in water with 40% of it volume above the surface of the water. If the volume of the log is 0.4 m3, find the mass of the log.


Displaying 61-75 of 522 results.