Solution Found!
Answer: An ore sample weighs 17.50 N in air. When the
Chapter 12, Problem 27E(choose chapter or problem)
Problem 27E
An ore sample weighs 17.50 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.20 N. Find the total volume and the density of the sample.
Questions & Answers
QUESTION:
Problem 27E
An ore sample weighs 17.50 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.20 N. Find the total volume and the density of the sample.
ANSWER:
Solution 27E
Step 1:
Weight of the sample in air, Wair = 17.50 N
Weight of the sample in water, Wwater = 11.20 N
Change in weight of the sample while immersing it in the water from the air, W = Wair - Wwater
W = 17.50 N - 11.20 N = 6.30 N
So, we can write, mg = 6.30 N
Where m - mass of the sample and g - acceleration due to gravity
Therefore, mass of the sample, m = 6.30 N / 9.8 m/s2 = 0.643 kg