William is walking straight across a field towards a vertical flagpole .He observes that when he is at point A ,the angle of elevation of T, the top of the flagpole is 30degrees and when he is at point B, on the same side of the flagpole as A, the angle of elevation of T is 45degrees .The distance between A and Bis 20 metres . Using a scale of 1cm to represent 4m ,construct a single diagram to show the relative positions of A, B and T .b. Using a suitable construction on the same diagram, find the height of the flagpole

Zamir and talia raced through a maze. zamir walked 2 m north, 2 m east, 4 m south, 2 m east, 4 m north, 2 m east, 3 m south, 4 m east and 4 m north. talia walked 2 m north, 6 m east, 3 m south, 4 m east, and 4 m north. compare their displacements:

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

Aball of mass 0.3kg is released from rest at a height of 8m.how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s