Which statements describe an object in motion that has no external force acting on it? check all that apply. it accelerates and speeds up. it moves at a constant speed. it decelerates and slows down. it changes direction. it moves in the same direction.

Gunpowder residue is most likely to show up where on a shooters hands

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.

Ways that industry and agriculture use physical properties to separate substances