An object moves in a circle of radius R at constant speed with a period LaTeX: T T
. By what factor should the period be changed so that the object's final acceleration magnitude is LaTeX: k
k
times its initial value (that is, LaTeX: a_f=k\,a
a
f
=
k
a
) where LaTeX: k=
k
=
0.553.

answerdmitry mendeleyev made a workable classification of the elements

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.