Leg 1 Swimming Total distance: 3.0 km

Triathlete A's total time: 0.8 h

Triathlete B's total time: 1.0 h

Triathlete A's average speed =

Triathlete B's average speed =

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good