A horse began running due east and covered 25 km in 4.0 hr. What is the average velocity of the horse?
2 answers:
Answer:
B) due east
Explanation:
Conceptual analysis
The average speed (v) is defined as the relationship between the displacement (d) that a body made and the total time (t) it took to perform it and is calculated by the following formula:
Formula (1)
v: velocity in m/s
d: Displacement (m)
t: Time (s)
Known data
We know the following data
d = 25 km
t = 4.0 hr
Problem development
We replace data in formula (1):
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Theoretical mass of Mg-24:
The theoretical mass of Mg-24 is:
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Theoretical mass = Hydrogen atom mass + Neutron mass = 24.1913 amu
Note that the mass defect is:
Mass defect = Actual mass - Theoretical mass : 24.30506 amu- 24.1913 amu= 0.11376 amu
Calculating the binding energy per nucleon:
So approximately 4.41294 Mev/necleon