Answer:
<em>The velocity of sound in the guitar string = 129.99 m/s</em>
Explanation:
Harmonics: A harmonic is a note with frequency equal to an integral multiple of that of the fundamental frequency.
<em>Note:</em> The harmonics of a string is the same as the harmonics of an open pipe.
f₆ = 3v/l ............................ Equation 1
making v the subject of the equation,
v = f₆l/3 ......................... Equation 2
Where f₆ = Is the sixth harmonics of the the string, v = velocity of sound in the guitar string, l = length of the guitar string.
<em>Given: </em>f₆ = 557.14 Hz, l = 70 cm = 0.7 m.
Substituting into equation 2
v = (557.14×0.7)/3
<em>v = 129.99 m/s</em>
<em>Thus the velocity of sound in the guitar string = 129.99 m/s</em>
Answer:
- Fundamental quantities are quantity whose definition does not depend on other quantities.
There are seven fundamental quantities in physics:
Length (measured in metres)
Mass (in kilograms)
Time (in seconds)
Electric current (in Ampere)
Temperature (in Kelvin)
Amount of substance (in moles)
Luminous intensity (in candela)
- On the other hand, derived quantities are quantities that are defined using the fundamental quantities.
For example, derived quantities are:
Velocity, which is the ratio between length and time
Acceleration, which is the ratio between velocity and time
Energy, which is a product of mass and velocity squared
And many others.
Answer:
Explanation:
Given:
Force between pair of charges= 900 newtons
The distance between the charges = 0.01 meters
Strength of Charge first q1 = 2e-10 Coulomb
To find:
Strength of Charge second q2 = ____ Coulomb?
Solution:
We know that,
Force between two charges separate by distance r is given by the equation,
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Answer:
Explanation:
An Ideal Machine is a machine which gives 100 percent efficieny that is entire input energy is converted into output energy.
however this is not possible as some energy is lost due to friction, imperfect components and all. Therefore no machine is Ideal machine.