Answer:
Hi there!
There are many possible answers!
My best guesses are:
1) Knowing how they work will prevent injury! For example, knowing that the gears twist will stop you from putting your finger in it!
2) Allowing you to use it! Knowing how to line up the edge of the can with the tool will let you use it properly!
Hope this helps
30 km (20 mi) to 50 km (30 mi)
Answer:
Volume of 80% pure antifreeze used = 180 gallons.
Volume of water to be used = 240 - 180 gallons = 60 gallons
Explanation:
Let the volume of 80% pure antifreeze used to make 60% pure antifreeze = x gallons
The volume of 60% pure antifreeze = 240 gallons
For 80% pure antifreeze:
C₁ = 80% , V₁ = x gallons
For 60% pure antifreeze :
C₂ = 60% , V₂ = 240 gallons
Applying,
C₁V₁ = C₂V₂
80×x = 60×240
x = 180 gallons
<u>Thus , volume of 80% pure antifreeze used = 180 gallons.</u>
<u>Volume of water to be used = 240 - 180 gallons = 60 gallons</u>
Yes, it is true, both mass spectrometry and infrared spectroscopy involve interaction of molecules with electromagnetic waves. ;Mass spectrometry method is used to determine the mass of a substance while infrared spectroscopy is used to determine the functional groups in molecules. Both methods involve the analysis of electromagnetic light interaction with molecules.