Answer:
D. are made of cell
Explanation:
first , cell simply means the basic and structural unit of life ......All living organisms have cells
It could be Unicellular(amoeba), colonial form ( volvox) , filamentous form(spirogyra) or multicellular .......
-- Any object has gravitational potential energy relative to any place
lower than where the object is. The stove in the kitchen has potential
energy relative to the basement floor.
-- If an object is not moving, then it has no kinetic energy. The stove has
no kinetic energy unless you throw it or drop it out of a window.
Answer:
Ratio of length will be 
Explanation:
We have given time period of the pendulum when length is 
is 
And when length is 
time period 
We know that time period is given by
So 
----eqn 1
And 
-------eqn 2
Dividing eqn 2 by eqn 1
Squaring both side
