1.as the ruler vibrates back and forth it makes waves of molecules pushed together(pressure waves) when the ruler is longer it vibrates more slowly,so pushes molecules together less often,so the waves of molecules are further apart the frequency of sound waves are lower.Lower prequency waves have lower pitch.
2.Always wear sunscreen,avoid sun in the middle of the day.The ultraviolet rays,which cause sunburn,are strongest during this time
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Answer:
31-35 It produce small or maybe a small impact sounds because you just snapped the ruler gently
Explanation:
36-40 yung picture
sana makatulong.
Answer:
1.as the ruler vibrates back and forth it makes waves of molecules pushed together(pressure waves) when the ruler is longer it vibrates more slowly,so pushes molecules together less often,so the waves of molecules are further apart the frequency of sound waves are lower.Lower prequency waves have lower pitch.
2.Always wear sunscreen,avoid sun in the middle of the day.The ultraviolet rays,which cause sunburn,are strongest during this time
Explanation:
Sana po nakatulong