A cheetah 325 m North in 30 minutes. What was the cheetah's speed in km/hr?

Can someone explain to me how to do this problem ?

Which governments provide garbage collection services to homes and businesses

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