A model airplane is aimed due south, but a steady breeze, with a speed of 6.86 m/s, blows in the western direction, taking the airplane off course. An observer on the
ground below measures the speed of the plane to be 10.72 m/s. What would the
speed of the model airplane be if there were no breeze?

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic

What word chemical equation describes cavendish’s experiment with zinc?

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.