Given right triangle ABC with altitude \overline BD drawn to hypotenuse AC . If AD=1 and AC=5, what is the length of \overline AB
in simplest radical form? (Note: the figure is not drawn to scale.

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Name two kinds of practical electric pumps.

Debris produced by mining is called