An oridinary hydromater has mass of 27g floats with 4cm of its stem out of water . the are of cross section of stem is 0.75cm2 .what is the total volume of the hydrometer

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.