CRAWLSPACE YOU HAVE. There are two common ways to insulate a crawlspace. depending on the type of crawlspace. If there are pipes. and uninsulated ducts present, insulate the walls of the. crawlspace area. If there are no pipes in the area, insulate the floor above the space. SELECTING THE RIGHT.
If the mass of an apple is 100g on average and the mass of the earth is approximately 6.0 * 10^24kg how many apples would it take to equal the mass of the earth?
According to HowStuffWorks, an atomic mass unit is defined as the mass of a single proton or neutron. Hydrogen, the lightest element, has an average mass of 1.00794 amu. A carbon-12 atom is made up of six protons and six neutrons, hence 12 atomic mass units. The mass of the electron is considered negligible, therefore electrons are not counted in measuring an atom's atomic mass.