In order to decrease the required centripetal acceleration for a car driving around a turn, the driver could a. decrease the radius of the turn
b. increase the radius of the turn
c. speed up
d. double the centrifugal force

What is the main difference between the atmospheres of jupiter and neptune? a. neptune does not have hydrogen and helium. b. jupiter does not have hydrogen and helium. c. jupiter has methane clouds. d. neptune has methane clouds.