Warm Front would be your answer
When you decide to execute a maneuver, you will need a control zone of approximately TWELVE TO FIFTEEN seconds. Maneuvering involves reversing around a corner, either to the left or to the right in order to changing the direction of the vehicle. <span />
Two potential functions that eukaryotic cells perform to regulate transcription are DNA methylation: a process of epigenetics that participates in the regulation of the gene expression in two ways, directly impeding the union of the transcription factors, and indirectly propitiating the closed structure of the chromatin, and Histone acetylation, enzymes that acetylate conserved lysine residues in histones by transferring an acetyl group from an acetyl-CoA molecule, to form ε-N-acetyl lysine, is extensively associated with an open chromatin structure and therefore accessible to transcription factors, which increases gene expression.
The marble is release from the top of the ramp.Gravitational potential energy decreases as it roll down the ramp,at the same time the marble gains kinetic energy as well as a lost of energy in the form of heat due to friction.
Chenge in PE=change in KE
therefore energy remains the same on all parts of the ramp
