Answer:
0.0000333 m³/s
Explanation:
using Bernoulli's equation
P1 + 1/2ρv1² + ρh1g = P2 + 1/2ρv2² + ρh2g
P1 = P2 both are atmospheric pressure; they cancel out
1/2ρv1² + ρh1g = 1/2ρv2² + ρh2g divide both side with ρ (rho)
1/2v1² + h1g = 1/2v2² +h2g
collect the like terms
h1g - h2g = 1/2v2² + 1/2v1²
multiply both side by 2 and take g out from the left equation
2g(h1 - h2) = v2² + v1² where v1 is approximately 0 assuming the surface of the tank is large
v2² = 2g(h1 - h2)
take square root of both sides
v2 = √2g(h1 - h2)
h1 = 3.75 + 6.5 = 10.25
h2 = 6.5
v2 = √2g(h1 - h2) = √ (2×9.81× (10.25 - 6.5)) = 8.6 m/s
Volume in m³/s = A × v where A is the area of the hole and the radius of the hole = 2.22 mm / 2 (where 2.22 mm is the diameter of the hole) = 1.11 mm and 1.11mm / 1000 to convert it to meters
Area of the hole ( assuming it is a circle) = πr² = 3.142× (1.11/1000)²
Area = 0.00000387 m²
Volume in M³/s = 0.00000387 × 8.6 = 0.0000333 m³/s
Answer:4. Two charged objects have a repulsive force of 0.080 N. If the distance separating the objects is tripled, then what is the new force? Explanation: The electrostatic force is inversely related to the square of the separation distance.
Explanation:
The four inner planets, those closest to the Sun, are Mercury, Venus, Earth, and Mars. They are smaller and composed mainly of metals and rocks. The four outer planets — Jupiter, Saturn, Uranus, and Neptune — are larger and composed mostly of gases.
Habitat preservation is when people get together or just one person helps to stop the end of a living space for animals such as the monterey aquarium the help sea life by doing research to see why animals are dying and do what they can to stop it. another one if nation parks or forests you are not allowed to harm them in any way they are protected by laws(the government)
Answer:
h~=371.26m
Explanation:
when an object falls we use the equations of accelerated motion. There is only one that gives distance.
Since we have no initial velocity (started from rest) we can get rid of the (ut) term
where a we substitute g (gravitational acceleration, constant for given heights and almost 9.81m/s^2).
