Apoint charge q is held fixed in place and another point charge q is brought closer to it moving at constant velocity. which of the following statement(s) is (are) true?
i. the electrostatic potential energy of q increases as it is brought closer to q if q and q are of the same sign.
ii. the work done by the electrostatic force is positive if q and q are of the same sign.
iii. the work done by an external force to bring q closer to q is positive if q and q are of the opposite sign.
iv. the work done by an external force to bring q closer to q is negative if q and q are of the opposite sign.

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? define a variable for the situation. write an inequality that represents the situation. solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

How can you decide witch operations to use to slice a two step equation

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?