The communications system has evolved greatly in the last 20 years. People are now able to communicate more quickly and easily using computers, cellular phones, and other devices. Identify one possible side effect this change may have. Explain your answer. Identify one physical or social system that would be affected by an increase in the average age of Canada’s population. Describe how this change would affect the system.

Explain vector addition, triangle method and parallelogram method

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2