If the pH of a substance is 12.4, the substance is a _______
1 answer:
Answer:
Strong base
Explanation:
A strong base usually has the pH of between 12 to 14
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Given that
Velocity of missile (v) = 20 m/s ,
Angle of missile (Θ) = 53°
Determine , Vertical component = v sin Θ
= 20 sin 53°
= 15.97 m/s
