1. Archaeologists have discovered the legendary Golden Igloo of the Pribiloff Islands, a structure consisting of a

halfspherical shell with an inner diameter of 1.25 m and an out diameter of 1.45 m. What is the value of this antiquity,

given that gold currently sells for $1,263/ounce and has a density of 19.3 g/cm3? (Note that 1 ounce = 31.1034768 g)

The value of the Golden Igloo is $227.4 million.

Explanation:

First, we need to find the inner and the outer volume of the half-spherical shell:

The total volume is given by:

Where:

: is the inner volume

: is the inner radius = 1.25/2 = 0.625 m

: is the outer volume

: is the outer radius = 1.45/2 = 0.725 m

Then, the total volume of the Igloo is:

Now, by using the density we can find the mass of the Igloo:

Finally, the value (V) of the antiquity is:

Therefore, the value of the Golden Igloo is $227.4 million.

I hope it helps you!  

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

there is none because earth is stationary and flat.