Answer:
ثر أنواع التربة خصوبة التربحمراء .
ج- السوداء
Explanation:
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Answer:
He is incorrect. Dissolving salt in water and evaporation of the water are both physical changes. The reappearance of salt is evidence that the change was reversible by a physical change, so it could not be a chemical change.
Hello!
The answer that makes most sense to me is option A.
~ Hope I helped! ~
<span>The range of an object thrown at a velocity v with an angle of elevation 45 degrees is S = v^2/g
100 = v^2/g
=> v^2 = 100*g
In the same throw, the maximum height of the ball can be derived from the equation v^2 - u^2 = 2*g*h
It is is h = =
= 50 metres</span>
