C. Temperature, chemical composition and mineral structure
Explanation:
The Bowen's reaction series illustrates the relationship between temperature, chemical composition and mineral structure. 
The series is made up of a continuous and discontinuous end through which magmatic composition can be understood as temperature changes. 
- The left part is the discontinuous end while the right side is the continuous series. 
- From the series, we understand that a magmatic body becomes felsic as it begins to cool to lower temperature. 
- A magma at high temperature is ultramafic and very rich in ferro-magnesian silicates which are the chief mineral composition of olivine and pyroxene. These minerals are predominantly found in mafic- ultramafic rocks. Also, we expect to find the calcic-plagioclase at high temperatures partitioned in the magma. 
- At a relatively low temperature, minerals with frame work structures begins to form . The magma is more enriched with felsic minerals and late stage crystallization occurs here. 
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The calculated magnitude is  6.73 x 10³ V/m.
AMU is described as being one-twelfth the mass of a carbon-12 atom (12C). C makes up more than 98% of the carbon that can be found in nature, making it the most prevalent isotope. The magnitude of the field is the change in potential across a small distance in the indicated direction divided by that distance.
Potential difference = 8.20 kV= 8.20 x 10³ V
radius= 19.4/100=0.194 m
total distance that is circumference of the circle= 2πr =2 x 3.14 x 0.194
                                                                                = 1.218 m
therefore Magnitude= 8.20 x 10³ / 1.218
                                   =6.73 x 10³ V/m
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Answer:
Explanation:
Given
Volume of bucket 
Time taken to fill the bucket 
so volume flow rate is 
1 gal is equivalent to 

mass flow rate 


(b)Average velocity through nozzle exit



 
        
             
        
        
        
Answer: Construction management, Architecture, Civil Drafting.
Explanation: hope this helps :)