Mars is about twice as far from the sun as is Venus (rVenus = r, rMars = 2r). A Martian year, which is the time it takes Mars to go around the sun, is
about three times as long as a Venusian year (Tvenus = T, TMars = 3T).
a. Which of the two planets has the greater rotational speed in its orbit?
b. Which planet has the greater tangential speed?

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.