What is the engery source that drives the water cycle and gives us weather on earth

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

The net below can be folded to form a square pyramid.la2419"100what is the surface area of the pyramid? 190.8 square inches| 0 217.8 square inches300. 6 square inches354.6 square inches