Answer:
Explanation:
The tank is half full so height of water level is at 1 m . Centre of gravity of water will be at height of .5 m . Pressure will act at this point .
Pressure = h d g where h is height of centre of mass of water column , d is density of water and g is acceleration due to gravity .
Pressure of water column = .5 x 10³ x 9.8 = 4.9 k Pa .
Air is pressurized to 5 kPa so
resultant pressure on one side of the tank due to the air and water
= 4.9 + 5 kPa = 9.9 kPa .
Total force on one face = pressure x area of one face under water
= 9.9 x 10³ x .5 x 2²
= 19.8 kN .
Answer:
B
Explanation:
The fault will eventually build mountians given time.
Answer:
we have caused global warming, we have caused the enhanced green house effect
Answer:
40
Explanation:
rule: K.E = 1/2 m×v^2
1/2 × 5 × (4)^2= 40 joule
