Elements are classified into Pure Substances and Mixtures.

A. True
B. False

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

In which of these cases are the two wave points considered to be in phase with each other?

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone