A wave has a wavelength of 2 meters and a frequency of 1.5 Hz.
What is its speed?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Which inventor was often called the lady edison