Hey can anyone me wih these questions

The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in.An object will sink if it is more dense than the liquid it is placed in.

Since the above solid sinks to the bottom it reflects that the object is less dense that the water.

Hope this answers your question

If your workout exceeds an hour you should substitute "a sports drink" for water.hope my answer has you : )