The symbol shown in the figure is placed near the supply terminals of a schematic diagram. This shows that supply current is

A. alternating.
B. rectified.
C. pulsating.
D. direct.

Need fast im timed in a paragraph of 125 words, explain at least three ways that engineers explore possible solutions in their projects.

Fast answer i need for apex ! smartphones should be banned from the classroom in public schools so that students cannot cheat on test so easily? which is an example of a counter argument to the thesis above? a.the classroom is a place for learning not for making phone calls b. smartphones are useful learning tools in the modern classroom c.banning smartphones will not students pay attention to teachers any better d. banning smartphones would decreased incidents of theft

Aobject is used for displaying the results of a question based on stored data. a. query b. report c. table d. form