Según el diagrama anterior, ¿cómo se forman las rocas metamórficas?
1 answer:
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Answer:
Noise level will be -18.2 watt
So option (b) will be correct answer
Explanation:
We have given sound intensity
And threshold intensity ( in question it is given as
but its standard value is
)
Now noise level
So the noise level will be -18.2
So option (b) will be correct answer
To solve this problem it is necessary to apply the concepts related to the conservation of energy, through the balance between the work done and its respective transformation from the gravitational potential energy.
Mathematically the conservation of these two energies can be given through
Where,
W = Work
Final gravitational Potential energy
Initial gravitational Potential energy
When the spacecraft of mass m is on the surface of the earth then the energy possessed by it
Where
M = mass of earth
m = Mass of spacecraft
R = Radius of earth
Let the spacecraft is now in an orbit whose attitude is then the energy possessed by the spacecraft is
Work needed to put it in orbit is the difference between the above two
Therefore the work required to launch a spacecraft from the surface of the Eart andplace it ina circularlow earth orbit is
Answer:
"332.8 m/s" is the right solution.
Explanation:
The given values are:
Wavelength,
Frequency,
As we know,
⇒
or,
⇒
By putting the given values in the above relation, we get
⇒
⇒