Answer:
Explanation:
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<u><em>Heart</em></u> is found to have the oldest cells in the human body
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lemon juice is 100 times as acidic as tomato juice. remember, each step in the pH scale represents a change in concentration by a factor of 10. since tomato juice has a pH of 4.0, and lemon juice has a pH of 2.0, the concentration would change by 10 times 10.
Force is mass × acceleration and it is measured in Newtons.
Mass = 3kg
Acceleration = 9m/s²
F = ma
F = 3×9
F = 27Newtons.
