In each round of the elongation cycle of protein synthesis, a new binds to the codon in the site, then the peptide is transferred from the trna in the site to the new aminoacyl-trna, and finally the entire moves along the mrna in a 5' to 3' direction.

aminoacyl tRNA-A-P-ribosome

Explanation:

In each round of the elongation cycle of protein synthesis, a new aminoacyl tRNA binds to the codon in the A site, then the peptide is transferred from the tRNA in the P site to the new aminoacyl-tRNA, and finally the entire ribosome moves along the mRNA in a 5' to 3' direction.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

this is a good question! i'll do some research and come back when i have the answer!