PLEASE HELP ME 15 POINTS A girl throws a ball vertically into the air with an initial velocity of 5.4m-s Assuming air resistance
is negligible, what is the maximum height reached by the ball above the girl's hand? Take acceleration
due to gravity, g, to be 9.81 ms? Give your answer with an appropriate unit and to two significant
figures.

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

Gunpowder residue is most likely to show up where on a shooters hands

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is