biophysics lec 2

Which of the following is false about solids

• has low density compared to other states of matter
• Low kinetic energy of molecules
• Low intermolecular distance
• Molecules oscillates in a regular lattice arrangement

which of the following is false about liquids

• Higher kinetic energy of molecules than solids
• Low intermolecular distance
• higher density than solids
• can be compressed

the only force acting on a static fluid is

The pressure depend upon the shape of the container, equal at the same horizontal points

• True
• False

a wooden cube that weights 300 grams of dimensions 0.3, 0.6,0.8 meters what is the volume

• 0.6
• 0.144
• 0.518
• 0.158

a wooden cube that weights 300 grams of dimensions 0.3 length 0.6 width 0.8 height meters what is the density

• 1.7
• 1.14
• 2.3
• 2.08

a wooden cube that weights 300 grams of dimensions 0.3 length 0.6 width 0.8 height meters what is the total pressure if the cube is submerged under a liquid with density of 2.3g/cm3 at a depth of 0.3 meters if you know that the atmospheric pressure equals 1.013 x 10 to the power of 5 Pa (N/m2)

• 107962
• 16.2944
• 17.2944
• 6762

calculate the density of a fluid if the total pressure that is an object that is submerged 10 cm deep into it equals 124000 pascal if you know that the atmospheric pressure equals 1.013 x 10 to the power of 5 Pa (N/m2)

• 2.32 × 10 power 4
• 22x10 power 3
• 22x10 power 6
• 2.32x10 power 6

a cube of 10 cm width submerged into a liquid if the pressure on the top of the cube is 212kpa and the pressure on the bottom of the cube is 224kpa what is the density of the liquid

• 124134.22kg/m cube
• 1223.45kg/m cube
• 12348.27kg/m cube
• 132.127kg/m cube

The fraction of the ratio of the density of a fluid is equal to the volume of an object immersed in the fluid

• true
• false