a. an object moves from point a to point b to point c, then back to point b and then to point c along
the line shown in the figure below.
1) find the distance covered by the moving object.
2) find the magnitude and direction of the displacement of the object.

What are the applications of electromagnetic waves

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Name two kinds of practical electric pumps.