I know that acceleration has a magnitude and direction. So 2m/s^2 [N] is the right expression?

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?