The final speed of the green ball : 8.5 m/s
<h3>Further explanation</h3>
Given
mass of Croquet ball = 0.5 kg
v₁= 10 m/s
v₁'= 1.5 m/s
Required
the final speed
Solution
The law of conservation of momentum
m₁v₁ + m₂v₂ = m₁v₁ '+ m₂v₂' (1=red croquet ball, 2=green croquet ball)
v₂=0 (at rest)
Input the value :

Using the pH=-log[ hydrogen ions], assuming the pH of water is 7 then using the concept that kw=[ OH] [H+], then the [H+]= 10 power minus 7,since kw=10 to the power minus 14
Answer:
Distance in kilometre = 4.242 x 10¹² km
Explanation:
Given:
Distance of Proxima Centauri = 4.242 light years
Find:
Distance in kilometre
Computation:
1 light year = 10,000,000,000,000 km
So,
4.242 light years = 4.242 x 10,000,000,000,000
Distance in kilometre = 4.242 x 10¹² km
ML. is the abbreviation of Milliliter

Actually Welcome to the Concept of the Geography.
Surface currents in a ocean or a sea are driven by Winds.