Answer:
an increase of acceleration or decrease of acceleration
Explanation:
More valence electrons and larger atomic radius are facts most suitable for increasing the electrical conductivity of metals.
Answer: The cells that make up the digestive, muscular, skeletal, reproductive, and excretory systems all need oxygen from the respiratory system to function, and the cells of the respiratory system—as well as all the other systems—need nutrients and must get rid of metabolic wastes.
Explanation:
Answer:
according to online:
"Hydrogen ions are transported with the electrons along the chain of reactions. In photosystem I, the electrons are energized, and the energy is stored in molecules of NADP+. During these reactions, the NADP+ molecules are reduced by the addition of electrons. A hydrogen ion is added to NADP+ to form NADPH."
Explanation:
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Solution :
Let, intensity at distance 3 m from the acoustic source is
.
We need to find the distance d where the intensity is
.
Now, we know intensity is inversely proportional to square of distance between the source.

Therefore, intensity will be halved at a distance of
.