Needing help with part B PART B: BRICK Step 1: Measure and record the weight (W)

Question

Needing help with part B PART B: BRICK Step 1: Measure and record the weight (W) of the 5.00 kg block of brick (n air) Step 2: a Measure and record the apparent weight (V) af the brick when submerged in water b. Does the brick appear to be heavier or lighter when submerged in water? c. When submerged in water, the brick appears to have an additional force pushing it is this additional force upward or downward? This additional force is the buoyant force (B) Step 3: a Draw a free-body diagram of the brick block at rest on the bottom of the pool to show how the weight, apparent weight, and buoyant force act on the block. b. Calculate the size of the buoyant force. Show your work Step 4: What is the volume of the brick block? (Observe, do not calculatel Step 5: What is the volume, mass, and weight of the displaced water? Summing Up 1. How does the buoyant force acting on an object compare to the weight of the water displaced by that object?

Explanation / Answer

Weight of the block, W = mg = 5 x 9.8 = 49 N
Apparent weight, N = 24.50 N
Apparent weight = Weight in air - Buoyant force
Buoyant force, Fb = Weight in air - Apparent weight
Fb = W - N
= 49 - 24.5
= 24.5 N.

Note: Buoyant force = Volume of water displaced x density of water x g
Volume of displaced water is same as that of the brick.

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