Quiz: Buoyancy Started: Oct 25 at 1:19pm Quiz Instructions Flag this Question Qu
ID: 1789213 • Letter: Q
Question
Quiz: Buoyancy
Started: Oct 25 at 1:19pm
Quiz Instructions
Flag this Question
Question 1 0.3 pts
What is the weight of a 40g aluminum block?
0.04 N
0.392 N
3.92 N
40 N
Flag this Question
Question 2 0.5 pts
An aluminum block with mass m=270 g is completely submerged in a beaker water without touch any bottom or wall. How much of the buoyancy force is the block received? (Hint, the volume of block can be figured out by the density of aluminum LaTeX: ho=2.7g/mL or 2700 kg/m3)
0.98 N
2.65 N
9.8 N
0.27 N
Explanation / Answer
According to the given problem,
a) The weight of the block,
W = mg = 40*10-3*9.81
W = 0.392 N [B]
b) The buoyancy force is the block received,
F = waterVg
F = 1000*(m/alu)*9.81
F = 0.981N[A]
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.