Answer: Are there options? I think the answer is continents, but I don't really understand the question. Is continents an option?
Explanation:
is the potential energy of the ball as it is half way through the fall, 20 meters high
<u>Explanation:</u>
Given data:
Height of the fall = 20 m
Given that the body is half-way through the fall, it is at above the ground 10 m
We need to find its potential energy (P.E)
Energy due to the body’s position is referred as potential energy. It means the energy when body is at rest. It can be expressed as below,
Where
m – The body’s mass
g - Acceleration due to gravity 
h - Height of the body
By substituting the given values, we get
Since the mass is not provided, just kept it.
Glaciers, groundwater, streams are three of them
Answer:
HNO₂
Explanation:
An acid is a proton donor; a base is a proton acceptor.
Thus, NO₂⁻ is the base, because it accepts a proton from the water.
H₂O is the acid, because it donates a proton to the nitrite ion.
The conjugate base is what's left after the acid has given up its proton.
The conjugate acid is what's formed when the base has accepted a proton.
NO₂⁻/HNO₂ make one conjugate acid/base pair, and H₂O/OH⁻ are the other conjugate acid/base pair.
NO₂⁻ + H₂O ⇌ HNO₂ + OH⁻
base acid conj. conj.
acid base
Answer:
Sulfur
Explanation:
Sulfur has 16 valence electrons, as shown in the diagram.
