Answer:
a) f₀ = 3250 Hz
, f₁ = 6500 Hz, b) μ = 0.00100 kg/m
Explanation:
a) For standing waves to occur, waves of equal frequency that travel in opposite directions must be added
In the points where it is fixed there are nodes and in bellies or anti nodes in another symmetrical point
Fundamental wave: node at the ends, a belly (antinode in the center
L = 1 / 2 λ
Extreme node, two bellies L = 2/2 λ
For more bellies L = n / 2 λ
Therefore the equation for the wavelength is
λ = 2 L / n n = 1, 2, 3,…
Let's calculate
λ₁ = 2/1 (2.20)
λ₁ = 4.4 m
λ₂ = 2/2 2.20
λ₂ = 2.20 m
Having the wavelength we can use the relationship of wave speed and wavelength and frequency
v = λ f
v = √ T /μ
v = √ 14.30 / 0.001
v = 14300 m / s
f = v / λ
f₀ = 14300 / 4.4
f₀ = 3250 Hz
f₁ = 14300 / 2.2
f₁ = 6500 Hz
b) linear density is defined as mass per unit length
μ = m / l
μ = 0.0022 / 2.20
μ = 0.001 kg/m
It starts to melt the minerals in within the earths core.
Every object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them. The forces along the line joining the centre of the two objects.
❍ Let us consider two masses m1 and m2 line at a separation distance d. Let the force of attraction between the two objects be F.
According to universal law of gravitation,
Also,
Combining both, We will get
Or, We can write it as,
Where, G is the constant of proportionality and it is called 'Universal Gravitational constant'.
☯️ Hence, derived !!
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Answer:
314.29 m/hrs
Explanation:
v = d / t
v = 1100 m / 3.5 hrs
v = 314.29 m/hrs
Note that I around the answer to the nearest hundredth. Hope this helps, thank you :) !!
