The speed of the large fish after eating the small fish is 4.76 m/s.
We can apply the law of momentum conservation to calculate the speed of the large fish.
Let the velocity of the large fish after eating small fish is v.
According to law of momentum conservation
m1u1+m2u2=(m1+m2)v
here, m1 is the mass of the large fish, u1 is the initial speed of larger fish, ml is the mass of the small fish, u2 is the initial speed of small fish
10*5+0.5*0=(10+0.5)v
v=4.76 m/s
<h3><u>Answer;</u></h3>
They are anions.
<h3><u>Explanation</u>;</h3>
- Polyatomic ions are the ions that contain 2 or more different atoms that are covalently bonded to each other.
- Examples include; Nitrate : NO₃⁻, Sulfate : SO₄²⁻,Hydroxide : OH⁻, and Phosphate : PO₄³⁻, etc.
- Polyatomic ions are tightly bound group of atoms that has a positive or negative charge and behaves as a unit.
ANY force at all, acting in the right direction, will stop him.
But smaller forces will take longer.
In order to either speed him up or slow him down at the rate
of 20 m/s every second, the force required is
(mass) x (acceleration) = (120 kg) x (20 m/s²)
= (2400 kg-m/s²) = 2400 N .
The force can either increase or decrease his speed at that rate,
depending on the direction in which it acts on him.
If the force is exerted opposite to the direction in which he's already
moving, then it can stop him if it continues long enough.
To figure that out you need the radius