As warm air rises above the land during the summer, what best describes air pressure over the ocean?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

What is the coefficient of kinetic friction μk between the block and the tabletop?

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