Answer:
The moment of inertia is 0.7500 kg-m².
Explanation:
Given that,
Mass = 2.2 kg
Distance = 0.49 m
If the length is 1.1 m
We need to calculate the moment of inertia
Using formula of moment of inertia
Where, m = mass of rod
l = length of rod
x = distance from its center
Put the value into the formula
Hence, The moment of inertia is 0.7500 kg-m².
Explanation:
The matter passes in the directions of the noise and flows from the source to a receiver like sound flows through a substance. As the sound flows through a fluid, the material is disrupted for an amount of time, but after the sound leaves, it restored to its normal location.
C. longest wavelength
Explanation:
Photons with the lowest energy have the longest wavelength and the shortest frequency.
The energy of photons is given as:
E = hf = 
where f is the frequency of photon
h is the planck's constant
∧ is wavelength
c is the speed of light
The more the frequency, the higher the energy of the photon.
Photons with low energy have long wavelength.
Learn more:
Wavelength brainly.com/question/6352445
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Answer:
r₂ = 4.43 r₁
Explanation:
To solve this exercise we must use Pascal's principle that the pressure at a point at a given depth is constant regardless of the body shape.
Let's use index 1 for the smallest plate and index 2 for the largest plate.
P₁ = P₂
pressure is defined
P = F / A
F₁ / A₁ = F₂ / A₂
A₂ / A₁ = F₂ / F₁
They indicate F1 = 40 N and the mass on the large plate is m₂ = 80kg
therefore the body weight is
W₂ = F₂ = m₂g
we substitute
A₂ / A₁ = m₂ g / F₁
A₂ / A₁ = 80 9.8 / 40
A₂ / A₁ = 19.6
the dishes are generally circular
A = π r²
A₂ / A₁ = π r₂² / π r₁²
A₂ / A₁ = (r₂ / r₁)²
we substitute
(r₂ / r₁)² = 19.6
r₂ / r₁ = √19.6 = 4.43
r₂ = 4.43 r₁
