Rate, fast :Maybe these are the answers.
Answer:
If the mass of a sample of aluminum foil is known, then it is possible to calculate the volume of the foil. In general volume is the product of length times width times height of an object. If we know the length and width of a piece of foil, we can then determine its height, or thickness.
sorry if wrong
The answer to the question is radium (Ra)
It is because aluminum cannot be recycled once corroded or used in reactions
Wavelength =speed/frequency
So speed/230
You need speed to get the answer
