The levels of structural organization:
cell ---> tissue ---> organ ---> organ system ---> organism
A dog's eye would be an organ.
Answer:
For the calculation of I = Erms2 / (cμ0), I get
I = (91.5 / √2)2 / [(2.99 x 108) (1.26 x 10-6)] = 11.07 W/m2
<u>
Intensity = 11.07 w/m^2</u>
t = 17.1 s
A = 0.0229 m2
U = energy = IAt = (11.07) (0.0229) (17.1) J = 4.34 J
<u>Energy = 4.34 Joules</u>
Answer
given,
Distance for decibel reading
r₁ = 13 m
r₂ = 24 m
When the engineer is at r₁ reading is β₁ = 101 dB
now, Calculating the Intensity at r₁
Using formula
I₀ = 10⁻¹² W/m²
now inserting the given values
I = 0.01258 W/m²
now, calculating power at r₁
P₁ = I₁ A₁
P₁ = 0.01258 x 4 π r²
P₁ = 0.01258 x 4 π x 13²
P₁ = 26.72 W
Answer:
N=mg
g=10-3=7
n=40×7
n=280
Explanation:
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Answer:
I = mgd/4π²f²
Explanation:
The period of the physical pendulum T = 1/f where f = frequency,
T = 1/f = 2π√(I/mgd) where I = moment of inertia of the physical pendulum, m =mass of pendulum, g = acceleration due to gravity and d = distance of center of mass of pendulum from pivot point.
1/f = 2π√(I/mgd)
dividing both sides by 2π, we have
1/2πf = √(I/mgd)
squaring both sides, we have
(1/2πf) = [√(I/mgd)]²
1/4π²f² = I/mgd
multiplying both sides by mgd, we have
I = mgd/4π²f²