Answer:
Explanation:
Given
Wavelength of first timpani
Frequency corresponding to this Wavelength
where
Wavelength of Second timpani
Frequency corresponding to this Wavelength
Beat frequency
Beat frequency
so approximately 7 beats per second
How many magnitude 8 earthquakes does it take to equal the energy release for a magnitude 9 earthquake?
1 answer:
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Taking into account the Universal Law of Gravitation, the force of attraction between the tow objects is 8 N.
<h3>Universal Law of Gravitation</h3>The Universal Law of Gravitation establishes that bodies, by the simple fact of having mass, experience a force of attraction towards other bodies with mass, called gravitational force.
The Universal Law of Gravitation states that the gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance that separates them.
Mathematically it is expressed as follows:
where:
- G is the universal gravitational constant, with a value of 6.67×10⁻¹¹
.
- M and m are the masses of the bodies that interact.
- d is the distance that separates them.
In this case, two objects attract each other with a gravitational force of 32 newtons. The distance between the two objects is doubled.
Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
Then, if the separation distance between two objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (d²= 2²= 4). The new force is then of the original:
F=×Foriginal
F=×32 N
<u><em>F= 8 N</em></u>
Finally, the force of attraction between the tow objects is 8 N.
Learn more about the Universal Law of Gravitation:
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Explanation:
velocity of disc
lets call (h) 1 m to make it simple.
= 3.614 m/s
m/s pointing towards this:
velocity of hoop=
lets call (h) 1m to make it simple again.
m/s
The disc is the fastest.
While i'm on this subject i'll show you this:
Solid ball
solid disc
hoop
The above is simplified from linear KE + rotational KE, the radius or mass makes no difference to the above formula.
The solid ball will be the faster of the 3, like above i'll show you.
solid ball: velocity
let (h) be 1m again to compare.
m/s
solid disk speed
uniform hoop speed
solid sphere speed