Answer:
339.12 m/s, 343.31 m/s
Explanation:
For main rotor
diameter, d = 14.4 m
radius, r = 7.2 m
f = 450 rev/min = 450 / 60 = 7.5 rps
Angular speed, ω = 2 x π x f = 2 x 3.14 x 7.5 = 47.1 rad/s
linear speed, v = r x ω = 7.2 x 47.1 = 339.12 m/s
For tail rotor
diameter, d = 1.6 m
radius, r = 0.8 m
f = 4100 rev/min = 4100 / 60 = 68.33 rps
Angular speed, ω = 2 x π x f = 2 x 3.14 x 68.33 = 429.13 rad/s
linear speed, v = r x ω = 0.8 x 429.13 = 343.31 m/s
The equation that shows the relationship between X₁ and X₂ in the springs is X₁ = 4X₂.
<h3>How to compute the equation?</h3>
From the complete question, for case I, the two springs stretch up to the distance of X₁. Therefore, f = mg = kx₁.
For case 2, f = mg = kx₂.
Therefore, we'll equate the equations. This will be:
Kx₁ = Kx₂
(K/2)x₁ = (2k)x₂
K(x₁/2) = k(2x₂)
X₁/2 = 2x₂
X1 = 2 × 2x₂
X₁ = 4X₂.
In conclusion, X₁ = 4X₂.
Learn more about equations on:
brainly.com/question/2972832
The appropriate answer is ' The smooth surface of the CD causes wavelengths of light to scatter. The CD at this point acts somewhat like a prism splitting white light into the colors of the rainbow. This is called the visible spectrum of light and is composed of the colors red, orange, yellow, green, blue, indigo and violet.
Answer:
Plan B.
Because flexibility is best improved by stretching.
Explanation:
Improving and increasing flexibility is done by having stretching sessions daily which maintains and widens the range of motion in the joints and stretches muscles.