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1 answer:
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Answer:
pH = 4.45
Explanation:
We need to find the pH of solution of HCl. We know that, pH of a solution is given by :
Put all the values,
So, the pH of the solution of HCl is 4.45.
58kg
Explanation:
Given parameters:
Mass of bicycle = 8kg
Total force exerted = 191.4N
Acceleration = 2.9m/s²
Unknown:
Naomi's mass = ?
Solution:
Force is a product of mass and acceleration as sated in the second law of newton.
Force = mass x acceleration
Total force on the bicycle = total mass x acceleration
191.4 = (8 + k) 2.9
8 + k = = 66
K = 66 - 8 = 58kg
learn more:
Newton's laws brainly.com/question/11411375
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