<span>I think that the coefficient of cubical expansion of a substance depends on THE CHANGE IN VOLUME.
Cubical expansion, also known as, volumetric expansion has the following formula:
</span>Δ V = β V₁ ΔT
V₁ = initial volume of the body
ΔT = change in temperature of the body
β = coefficient of volumetric expansion.
β is defined as the <span>increase in volume per unit original volume per Kelvin rise in temperature.
</span>
With the above definition, it is safe to assume that the <span>coefficient of cubical expansion of a substance depends on the change in volume, which also changes in response to the change in temperature. </span>
        
             
        
        
        
I tried to look it up but it was saying that the super climate later broke apart in the sediments have been moving into their current positions ever since
 
        
             
        
        
        
Expand each vector into their component forms:

Similarly,


Then assuming the resultant vector  is the sum of these three vectors, we have
 is the sum of these three vectors, we have


and so  has magnitude
 has magnitude

and direction  such that
 such that

 
        
             
        
        
        
Answer:
12 km/h
Explanation:
Average Speed = Distance / Time (or rate)
Pick a point on the graph for Ian and plug in values.
For example, 20 minutes -> 4km
Hence, Average speed = 4km ÷ 20 minutes = 0.2 km/min
0.2 km/min × 60 = 12 km/h