Which equation expresses newtons second law of motion

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

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

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