Wave speed = frequency * wavelength
Wave speed = 1.80 * 0.30
Wave speed = 0.54 m/s
The time it takes for dissolvable or absorbable stitches to disappear can vary. Most types should start to dissolve or fall out within a week or two, although it may be a few weeks before they disappear completely. Some may last for several months
Answer: THE ANSWER IS D
Explanation:
an alcohol is a hydrocarbon chain with an hydroxyl group (OH)
A, B, AND C ARE ALL ALCOHOLS, SO THE ANSWER IS D