The answer was that Copernicus objected to Ptolemaic system where the theory states that the universe is geocentric, where celestial bodies moves around the earth instead of the solar system model where it was patterned to Copernicus' model where science have accepted that the sun is indeed the center of our solar system and not true with Ptolemy's argument.
The answer is 5. To find the advantage you just divide 20 by 4.
The answer is Efflorescent hydrate. <span>They are chemical substances that, when exposed to the atmosphere, release water. A typical example of this chemical reaction is cement, when mixed with water, the mixture hardens due to hydration, then the cement starts to lose water.</span>
To solve this problem we will apply Pascal's principle for which we know that the pressure relation between two surfaces under the same fluid is given by the relation between the applied force and the area which receives-prints the force. Mathematically this is,
For the relation given we have,
Replacing,
Finally we have that the work done on both sides should be equal then
A.) Cubic meters is your answer
Cubic meters are used to measure the volume of solids.
hope this helps