Formative work-pressure

Find a force, which creates 2 kPa pressure on the surface with 0,5 m² area.

The length of the cargo is 20 cm and the width is 10 cm. Find the pressure at a table when its mass is 7 kg. Take g=10 N/kg:

The milk at the bottom of the bidon creates a pressure of 30.9 kPa. Find the height of the milk column. Accept the density of milk equal to 1030 kg/m³ and g=10 N/kg.

The hole with 20 cm2 area covered by a plug is located on the depth of 4 m in the tank which is filled by oil. Find the pressure force of oil on the plug. Accept the density of oil equal to 800 kg/m³ and g=10 N/kg.

The aquarium with 40 cm height, 50 cm length and 30 cm width is filed by water. Find the pressure force of water at the bottom of aquarium. accept g=10 N/kg

The left part of the communicating vessel is filled with kerosene and the right one with water. Determine the height of the kerosene column expressed by canti meter, if the height of the water column is հ₂=16 cm. The density of water is 1000 kg/m³ and kerosene is 800 kg/cm³.

The left part of the communicating vessel is filled by water and the right one with unknown fluid with 50 cm height. Find the density of this liquid, if height of water column is 40 cm. Take water density equal to 1000 kg/m³.

Բարոմետրը սարի գագաթին ցույց է տալիս 680 մմ. սնդ.ս ճնշում: Ի՞նչ ցույց կտա բարոմետրը սարի ստորոտին, եթե սարի բարձրությունը 550 մ է:

The barometer shows a pressure of 680 mm of Hg on the top of the mountain. What value will illustrate the barometer at the mountain bottom, when the height of the mountain is 550 m. Consider that the atmospheric pressure decreases by 1 mm of Hg per each 11 m rise.

Convert 81600 Pa into mm of Hg column. Take a mercury density equal to 13600 kg/m³, g=10 N/kg.