Answer:
a) Q = π r₁ √ 2ΔP / rho [r₁² / r₂² -1]
, b) Q = 3.4 10⁻² m³ / s
, c) Q = 4.8 10⁻² m³ / s
Explanation:
We can solve this fluid problem with Bernoulli's equation.
P₁ + ½ ρ v₁² + ρ g y₁ = P₂ + ½ ρ v₂² + ρ g y₂
With the two tubes they are at the same height y₁ = y₂
P₁-P₂ = ½ ρ (v₂² - v₁²)
The flow rate is given by
A₁ v₁ = A₂ v₂
v₂ = v₁ A₁ / A₂
We replace
ΔP = ½ ρ [(v₁ A₁ / A₂)² - v₁²]
ΔP = ½ ρ v₁² [(A₁ / A₂)² -1]
Let's clear the speed
v₁ = √ 2ΔP /ρ[(A₁ / A₂)² -1]
The expression for the flow is
Q = A v
Q = A₁ v₁
Q = A₁ √ 2ΔP / rho [(A₁ / A₂)² -1]
The areas are
A₁ = π r₁
A₂ = π r₂
We replace
Q = π r₁ √ 2ΔP / rho [r₁² / r₂² -1]
Let's calculate for the different pressures
r₁ = d₁ / 2 = 1.00 / 2
r₁ = 0.500 10⁻² m
r₂ = 0.250 10⁻² m
b) ΔP = 6.00 kPa = 6 10³ Pa
Q = π 0.5 10⁻² √(2 6.00 10³ / (850 (0.5² / 0.25² -1))
Q = 1.57 10⁻² √(12 10³/2550)
Q = 3.4 10⁻² m³ / s
c) ΔP = 12 10³ Pa
Q = 1.57 10⁻² √(2 12 10³ / (850 3)
Q = 4.8 10⁻² m³ / s
Answer:
D. loss of volatiles to the atmosphere
Explanation:
The name magma designates matter in a semi-fluid state - resulting from the fusion of silicates containing dispersed solid gases and minerals and other compounds that make up the rocks, at temperatures between 700 and 1200 ° C - that forms the region beneath the crust. land. When it is inside the earth it is specifically named magma and lava when it is ejected to the surface
There are three systems by which magma can be produced on earth:
<u>
Temperature</u> rise by concentration of r<u>adioactive elements or by friction of lithospheric plates</u>.
<u>
Pressure decrease,</u> since the melting point decreases.
Adding <u>water</u> A rock begins to melt earlier if it contains water because the –OH groups effectively break the Si-O bonds.
A rock is formed by a set of minerals, each of which has a characteristic melting point so a rock does not have a single melting point but a temperature range in which the rock melts into parts, leaving others solid parts. Between the point at which a solid rock begins to melt and the melting end (liquid point) the rock is partially molten.
The rise of magmas depends on their physical-chemical conditions (viscosity, density, volatile element content), on the tectonic peculiarities of the region where they are found and on the rocks to be traversed. Acid magmas are light and viscous, rise easily and cause large deposits. The basic magmas, of greater density, are less viscous and ascend with greater difficulty than the previous ones.
Brian’s Complexity Brian’s Complexity Brian’s Complexity Brian’s Complexity
Answer: 9130 joules
Explanation:
Workdone by wheelbarrow = ?
Time = 11 seconds
Power = 830 watts
Recall that power is the rate of doing work. Thus, power is workdone divided by time taken.
i.e Power = (workdone/time)
830 watts = Workdone / 11 seconds
Workdone = 830 watts x 11 seconds
Workdone = 9130 joules
Thus, 9130 joules of work is required to get the wheelbarrow across the yard.
Answer:
The Position of the object L = 0.172 m
Explanation:
The detailed explanation of the question is given in the attach document.
; for the point at 
, the potential is
and so 
.
