Answer:
V= C√p/s
Explanation:
We are given that
Dimension of speed of sound
V = L T ^-1
Volume of gas = L³
Pressure P= M¹L^-1T^-2
Density =M¹L^-3
So
LT^-1 = C [M¹L^-1T^-2]^x [M¹L^-3]^y [L³]^z
Compare powers
We have
x+y=0
-x+3y+3z=1
-2x=-1
So x= 1/2 y= -1/2 z= 0
So finally we substitute in
V=cp^xp^y V^z
We have
V= C√p/s
Answer:
Momentum = 7.14 Kgm/s
Explanation:
Given the following data;
Mass = 0.170 kg
Velocity = 42m/s
To find the momentum;
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
Momentum = mass * velocity
Substituting into the equation, we have;
Momentum = 0.170 * 42
Momentum = 7.14kgm/s
Therefore, the momentum of the honey puck is 7.14 Kgm/s.
Answer:
L = 0.7 m
Explanation:
This is a resonance exercise, in this case the air-filled pipe is open at both ends, therefore we have bellies at these points.
λ / 2 = L 1st harmonic
λ = L 2nd harmonic
λ = 2L / 3 3rd harmonic
λ = 2L / n n -th harmonic
the speed of sound is related to wavelength and frequencies
v =λ f
f = v /λ
we substitute
f = v n / 2L
the speed of sound in air is v = 343 m / s
suppose that the frequency of f = 980Hz occurs in harmonic n
f₁ = v n / 2L
f₂ = v (n + 1) / 2L
f₃ = v (n + 2) / 2L
we substitute the values
2 980/343 = n / L
2 1260/343 = (n + 1) / L
2 1540/343 = (n + 2) / L
we have three equations, let's use the first two
5.714 = n / L
7.347 = (n + 1) / L
we solve for L and match the expressions
n / 5,714 = (n + 1) / 7,347
7,347 n = 5,714 (n + 1)
n (7,347 -5,714) = 5,714
n = 5,714 / 1,633
n = 3.5
as the number n must be integers n = 4 we substitute in the first equation
L = n / 5,714
L = 0.7 m
If little herbert does something unconsciously he will probably, he's definitely very unware of he has done
Doing something unconscious may have some implications which may not be favourable.
<h3>What is unconscious?</h3>
Unconscious simply means a state of someone being absent minded of what is happening to him or her at a particular period of time
So therefore, if little herbert does something unconsciously he will probably, he's definitely very unware of he has done
Complete question:
What happens if little herbert does something unconsciously he will probably
Learn more about unconscious:
brainly.com/question/11747612
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