What makes some collisions elastic and others inelastic?
question 17 options:
if there is energy lost in the collision to sound, heat, etc., the collision is inelastic.
if there is no loss of kinetic energy in the collision, it is inelastic.
if the collision involves bouncing, it is elastic.
if the collision involves sticking together, it is elastic.

Answer : The The correct option is, If there is energy lost in the collision to sound, heat, etc., the collision is inelastic.

Explanation :

If the collision involves bouncing, it is inelastic because kinetic energy is not conserved.

If the collision involves sticking together, it is inelastic because kinetic energy is not conserved, it is changes to potential energy.

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step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.