Asked by dolapo

You are working at a garden centre for the summer. You lift a bag of fertilizer with a force of 143 N, and it moves upward with an acceleration of 0.762 m/s2.
a: how much does the fertilizer back weigh?
Answered by Damon
143 = m g + m a = m (9.81+0.762)

m = 143/(9.81+.762)

weight = m g
Answered by tia
An aqueous solution of HCl that is 4.000% HCl by mass has a density of
1.0181 g mL−1. What is the pH of this solution?
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