00:01
We're given that a gold block is made into a gold sheet with an area of 150 centimeters squared and a mass of 10 grams.
00:11
The gold block is 10 grams.
00:14
So we're making 10 gram gold block into a sheet that has this area in the density of gold.
00:20
We are also given as 19 .3 grams per cubic centimeter.
00:24
So if we have our mass and we have our area and we're looking for the thickness, then our thickness would just simply be the part of our volume we're missing.
00:43
So our volume is equal to area times height or thickness.
00:49
So this is going to be our x value we don't know.
00:54
So we'll solve for density.
00:56
We'll put up an equation using our density.
01:00
Equal to mass over volume, we have 19 .3 grams per cubic centimeter equal to our 10 gram mass over our volume, which we don't have, but we do have 150 is our area in centimeters squared times x, which will be our height that we're solving for.
01:28
Okay, so to solve this, we'll multiply both sides by one, 150x, 150x, and that'll give us 150x times 19 .3 equal to 10...