identical particles are placed at the 50-cm and 80-cm marks on ameter stick of neglibile mass. this ridigd body is then mounted so as to rotate freely about a pivot at hte 0 cm mark on the meter stick. if this body is released from rest in a horizontal position, what is the angular pseed of hte meter stick as it swings through it's lowest position

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.

The solid that is formed and usually sinks to the bottom of a solution is the

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in