Shaquita is sitting on a bench watching two bikers ride by her in opposite directions. which of the following statements is correct?
a. the relative motion between her and the bench is greater than the relative motion between the bikers.
b. the relative motion between the two bikers is greater than the relative motion between her and either biker.
c. the relative motion between her and one of the bikers will be greater than the relative motion between the bikers.
d. the relative motion between one biker and the ground will be greater than the relative motion between that biker and her.

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.