As you have seen in this lab, the density of water is near 1 g/cm3. Anything with a density lower than this will float in water, and anything with a higher density will sink. Imagine you are building a submarine. How could you be sure to have it sink and then rise? Make sure its density is always above 1.0 g/cm3. Make sure its density is always below 1.0 g/cm3. Develop a way to adjust its density so that it can be above and below 1.0 g/c

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

1) a

2)c

3)a

4)c

5)b

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answer; synapse; i believe this is correct,plz check first good luck;