Ametal object is suspended from a spring scale. the scale reads 943 n when the object is suspended in air, and 799 n when the object is completely submerged in water.
a. find the volume of the object. the acceleration of gravity is 9.8 m/s². answer in units of m³.
b. find the density of the metal. answer in units of kg/m³.

Explanation:

a) Buoyancy force = Volume x Density of fluid x Acceleration due to gravity

Buoyancy force = Weight in air - Weight in water

Buoyancy force = 943 - 799

Buoyancy force = 144 N

Volume x Density of water x Acceleration due to gravity = 144

V x 1000 x 9.81 = 144

V = 0.015 m³

Volume of object is 0.015 m³

b) Weight of metal = 943 N

   Mass of metal x Acceleration due to gravity = 943

   Mass of metal = 96.13 kg

   Volume of metal = 0.015 m³

   Density of metal = Mass of metal ÷ Volume of metal

   Density of metal = 96.13 ÷ 0.015

   Density of metal = 6408.43 kg/m³

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

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explanation:

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