A vector on an x/y graph runs from the origin (0,0) to the point (-6,-3). Which of the following could be a horizontal component vector (think the adjacent leg in your triangle)?
Select all correct answers.
From the origin to point (-6,0)
From the origin to point (0,-3)
From point (0-3) to (-6,-3)
From point (-6,0) to (-6,-3)
From point (-6,-3) to (0,-3)

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

Which of the following could represent a single-replacement reaction? a. element + compound = element + compound b. element + element = compound c. compound +compound = compound + compound d. compound = element + element