In experimental physics, reverberation produces echo and thus makes undesirable sound. An echo is a sound reflected off of a surface. In a big hall, it interferes with the actual sound. It gives confusion when people are having a conversation.
Answer: 0.000000315m
Explanation:
Radius of each bacterium in a petri dish
= 3.15 × 10^-7
According to the law of indices,
10^-7 = 1/10^7 = 1/10000000
Therefore, 3.15 × 10^-7 will then be:
= 3.15 × 1/10000000
= 0.000000315m
Therefore, the radius of the bacterium written as a decimal number in standard form will be 0.000000315m
D. A journalist who researched documented cases of abuse over the past 5 years.
