16m/s and mass of 862kg, friction force of 8 x 10^3

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?

How does an observation about an object differ from an inference about that object

What property of an object determines its inertia?