In a 5000 m race, the athletes run 12 1/2 laps; each lap is 400 m. kara runs the race at a constant pace and finishes in 17.9 min. hannah runs the race in a blistering 15.3 min, so fast that she actually passes kara during the race. how many laps has hannah run when she passes kara?

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

The necleus of an atom is made up of what subatomic particles?

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.