Answer:
Non-flowering plants like mosses, horsetails, ferns, clubmosses, ginkgos, and cycads
Explanation:
Mark me brainliest plz
Hello! B. would be an example of a chemical change.
Mechanical advantage of a machine is the ratio of the output force over the input force or M=Fo/Fi. Since M=1, Fi=Fo, or the input force is equal to the output force. This means that to raise the refrigerator that weighs 900 N, we need the same input force of 900 N, or Fo=Fi=900 N.
The reactants are <em>Calcium</em>, <em>Hydrogen</em> and <em>Oxygen</em>.
We need 1 atom of <em>Calcium</em>, 4 atoms of <em>Hydrogen</em> and 2 atoms of <em>Oxygen</em>.
Hope this helps.
r3t40
Answer:
A
Explanation:
the object's mass determines the speed of the object and its kinetic energy