Astudent submerges an irregularly object in a graduated cylinder half filled with water. the level of the water in the cylinder rises from 17.8 ml to 49.7 ml. if the density of water is 0.9984 kg/liter, calculate the mass of the object in grams. the use of correct number of significant figures is required in answering all questions.

In a system, when potential energy decreases, then entropy also decreases. true false

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic