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1.Use the value of the buoyant force to calculate an experimental value of the v

ID: 1490472 • Letter: 1

Question

1.Use the value of the buoyant force to calculate an experimental value of the volume of the 250 g mass in kg/m3 (Fb = LVD g). The density of water is approximately 1000 kg/m3. Show your work.

2. Use the measured dimensions of the 250 g mass to calculate the volume of the mass, Show your work.side=1.5cm length=5.5cm

3. Determine the percent difference between the measured volume of the 250 g mass and the value calculated from the buoyant force measurement. Show your work.

Object

Weight in Air (N)

Weight in
Water (N)

Buoyant Force
(N)

Volume
Displaced (mL)

250 g Hanging
Mass

3.1

2.6

-.05

65

Object

Weight in Air (N)

Weight in
Water (N)

Buoyant Force
(N)

Volume
Displaced (mL)

250 g Hanging
Mass

3.1

2.6

-.05

65

Explanation / Answer

1) 250 g mass

-0.05 = 1000 * V * 9.8

V = -0.05/ 9800

V = 5.102 x 10^-6 m^3

2) V = A* h

V = 0.015^2*0.055 = 1.24*10^-5 m^3

3) % difference = (1.24 x 10^-5 – 5.102 x 10^-6)/5.102 x 10^-6 = 1.43