What is the wavelength of an ultrasound signal having a velocity of 1,500 m/sec. at 2.5 mhz?

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.