over: stasis e for every trait. In epis nteract, wit of a gene at a different lo

Question

over: stasis e for every trait. In epis nteract, wit of a gene at a different locus. The resul that some expected phenotype- h one or more alleles of r masking the effects of one or more standing or stopping), genes a gene at one locus called lack or cho car is negligible. If the friction is not negligible, how would the friction affect each of the following: Work and Energy 2 lele of this so that the chocolate e (2) In air track experiments, we assume that the kinetic friction between the air track and the rlack s melani ger static to th er the (a) velocity of the car gene eli han two s pected (b) kinetic energy of the car (c) potential energy of the car (d) mechanical energy of the car

Explanation / Answer

Friction between air track and car will create resistance to motion and the velocity of the car will be lesser Since the velocity reduces, the kinetic energy also is decreased Because there is no change in vertical level (height) of the track throughout the experiment, there is no change in PE because of presence of friction Because of reduction in KE, the total mechanical energy is also reduced (because ME = PE + KE)

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