Distance is determined by measuring the length between the start and end point.
For example, short distances can be measured in feet, yards or metres.
Longer distances would be measured in miles or kilometres.
distance and time
Width of gaps
The distance between objects and the different is 0. The distance between the mass and an object is 1.
yes
Density.
No
The average speed
The wavelength of a longitudinal wave is determined by measuring the distance between two consecutive compressions or rarefactions in the wave.
The wavelength of a longitudinal wave is determined by measuring the distance between two consecutive compressions or rarefactions in the wave.
The observer.
Answer each question
The difference in arrival times of P and S waves.