Students have four pairs of sunglasses, each with lenses where the polarization filter is oriented in different directions (indicated by the direction of the lines drawn on the lenses below). They are planning to ride rafts down a river on a sunny day where there is a lot of glare on the water. Which pair would they want to wear to eliminate the glare from the sun?

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