Hello! 8 more days until Christmas heheh<3

Which of the following is not permitted in a roundabout? a. using your turn signal b. following the rules of right-of-way c. driving at the speed limit d. changing lanes

What is the bottle's speed, as a percentage of the ball's incoming speed?

Mars has a surface gravity that is only 0.38 (a little over one-third) that of earth's. thus, the weight of an object will also be 0.38 times that of earth. what is the g.p.e. of a climber who weighs 675 newtons on earth at the top of 26,000-meter olympus mons?