The Compton shift that occurs when photons scatter from electrons causes the to lengthen as they lose energy from electrons.

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

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.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?