Answer:
Assessment zone
Explanation:
It is the assessment zone in various security zones where active and passive security measures are employed to identify, detect, classify and analyze possible threats inside the assessment zones.
I think by using data collected by Tycho Brahe
<h2>
Power is 11 W</h2>
Explanation:
Power = Work ÷ Time
Work = Force x Displacement
Force = 22 N
Displacement = 3 m
Time = 6 seconds
Substituting
Work = Force x Displacement
Work = 22 x 3 = 66 J
Power = Work ÷ Time
Power = 66 ÷ 6
Power = 11 W
Power is 11 W
The force of gravity is the
force with which massively large objects such as the earth attracts another
object towards itself. All objects of the earth exert a gravity that is
directed towards the center of the earth. Therefore, the force of gravity of
the earth is equal to the mass of the object times acceleration due to gravity and also equal to the weight of the object.
F = ma
since F = W
W = ma
Answer:
1.75 atm
Explanation:
Mass is conserved, so the mass flow before the constriction equals the mass flow after the constriction.
m₁ = m₂
ρQ₁ = ρQ₂
Q₁ = Q₂
v₁A₁ = v₂A₂
v₁ πd₁²/4 = v₂ πd₂²/4
v₁ d₁² = v₂ d₂²
Now use Bernoulli equation:
P₁ + ½ ρ v₁² + ρgh₁ = P₂ + ½ ρ v₂² + ρgh₂
Since h₁ = h₂:
P₁ + ½ ρ v₁² = P₂ + ½ ρ v₂²
Writing v₂ in terms of v₁:
P₁ + ½ ρ v₁² = P₂ + ½ ρ (v₁ d₁²/d₂²)²
P₁ + ½ ρ v₁² = P₂ + ½ ρ v₁² (d₁/d₂)⁴
P₁ + ½ ρ v₁² (1 − (d₁/d₂)⁴) = P₂
Plugging in values:
P₂ = 2 atm + ½ (1000 kg/m³) (4.4 m/s)² (1 − (3.3 cm / 2.4 cm)⁴) (1 atm / 1.013×10⁵ Pa)
P₂ = 1.75 atm
