Answer:
The length of the rod should be
![\frac{L}{4} \\](https://tex.z-dn.net/?f=%5Cfrac%7BL%7D%7B4%7D%20%5C%5C%20)
Explanation:
Period of simple pendulum is given by
![T=2\pi\sqrt{\frac{l}{g}} \\](https://tex.z-dn.net/?f=T%3D2%5Cpi%5Csqrt%7B%5Cfrac%7Bl%7D%7Bg%7D%7D%20%5C%5C%20)
We have
![\frac{T_1^2}{T_2^2}=\frac{l_1}{l_2}\\\\\frac{2^2}{1^2}=\frac{L}{l_2}\\\\l_2=\frac{L}{4} \\](https://tex.z-dn.net/?f=%5Cfrac%7BT_1%5E2%7D%7BT_2%5E2%7D%3D%5Cfrac%7Bl_1%7D%7Bl_2%7D%5C%5C%5C%5C%5Cfrac%7B2%5E2%7D%7B1%5E2%7D%3D%5Cfrac%7BL%7D%7Bl_2%7D%5C%5C%5C%5Cl_2%3D%5Cfrac%7BL%7D%7B4%7D%20%5C%5C%20)
The length of the rod should be
![\frac{L}{4} \\](https://tex.z-dn.net/?f=%5Cfrac%7BL%7D%7B4%7D%20%5C%5C%20)
Isn't a hypothesis making a theory? Based on that I guess the answer would be A. Making a theory, because you making the hypothesis is not part of testing it.
Answer:
power is the rate at which energy is transferred or converted
the unit of power is Watts
Nicolaus Copernicus was the one who brought astronomy out of the dark ages.
In one of his books "On the Revolutions of the Heavenly Bodies", he published the renowned line which declares his theory.
Nicolaus Copernicus, A polish astronomer put forward the theory that the is th Sun one that rests in the middle or center of the Universe and the planet Earth revolves around it on its axis every day.which was considered to be called the Heliocentric system.
To know more about the Heliocentric system refer to the link brainly.com/question/3491738?referrer=searchResults.
To know about Sir Nicolaus Copernicus' work refer to the link brainly.com/question/6699117?referrer=searchResults.
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