Sprinting near the end of a race a runner with a mass of 60 kg accelerate from a speed of 60 mi./s to speed of 70 mi./s in two seconds respond to both ANB explain how you arrived at your answers. (A)how far away from the finish line was the runner when she began her sprint? (B) To gain speed run and produces a backward force on the ground so that the ground pushes the runner for providing the force necessary for acceleration calculate the average force.

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

What part of the ear is names after tools, such as the hammer and the anvil?