Answer:
73 db
Explanation:
A single air conditioner is equivalent to 70 dB frequency. An extra air conditioning unit would therefore double the sound frequency. It does not, however, double the decibels to 140 dB. Instead, it adds only 3 dB to the 70 dB, making the total decibels of two air conditioning units equal to 73 db
Hence the correct option is b that is 73 db
I believe the answer is potential difference
Answer:
if it is a plastic connector it wont work but if there is metal or steel it will work
Explanation:
One scientist proposes an idea and other scientists repeat his or her experiments so they can Accept the Idea.