Answer:
3.95 x 10⁵ Pa
Explanation:
given,
depth of water tank = 10 m
bottom tank height = 20 m
density of water = 1000 Kg/m³
diameter of hose = 2 cm
Pressure at ground level = ?
net head of water from the ground
H = 20 + 10
H = 30 m
pressure exerted at the ground
P = ρ g h
P = 1000 x 9.8 x 30
P = 2.94 x 10⁵ Pa
atmospheric pressure = 1.01 x 10⁵ Pa
total pressure on the ground
= atmospheric pressure + pressure due to water tank
= 1.01 x 10⁵ Pa + 2.94 x 10⁵ Pa
= 3.95 x 10⁵ Pa
That the Earth was the center of the universe.
Answer: Earth
Answer:
A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically malleable (they can be hammered into thin sheets) or ductile (can be drawn into wires). A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride.
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