MacBook Pro What metal is the object 2 made of? Your answer sh guess should be b

Question

MacBook Pro What metal is the object 2 made of? Your answer sh guess should be based on your measured data, not by ous metal. The crown has a weight of 1.029 N in air and 0.931 A beauty crown is made of a pure preci N when it is submerged in water. What metal is the 2. crown made of? The plastic block used Archimedes pltwere weighted, would the measured total weight be less than the sum of water and the plastic block the weights of individual components? Explain it. in Measurement #4 is dropped into water in a beaker, According to the plastic block experiences an upward buoyant force. If the beaker with 3.

Explanation / Answer

Given,

W = 1.029 ; W' = 0.931 N

When in Air

rho(air) V g + W = mg

when in water

rho(water) V g + W' = mg

1.2 x V x 9.8 + 1.029 = mg

1000 x V x 9.8 + 0.931 = mg

9788.24 V = 0.098

V = 1.001 x 10^-5 m^3

putting this in 1 eqn gives

m = (1.2 x 1.001 x 10^-5 x 9.8 + 1.029)/9.8 = 0.105 kg

density = m/V = 1.05/1.001 x 10^-5 = 10489 kg/m^3

This is almost equal to the density of silver.

Hence, the metal is silver.

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