physics

Water is in the big beaker in the figure on the left. Scale 1 reads 87 Newtons, scale 2 reads 544 newtons, and scale 3 reads 0 newtons. The hanging block has a density of 15 x 10^3 kg/m^3.

What does scale 1 read after the block is fully lowered into the beaker of water?
Scale 1 reads:

What is the new reading on scale 2?
Scale 2 reads:

The experiment is repeated with the valve opened. What is the new reading on scale 3?
Scale 3 reads:

With the valve opened, what is the new reading on scale 2?
Scale 2 reads:

  1. 👍 0
  2. 👎 0
  3. 👁 405

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