The substance that is made of atoms of more than one type bound together is called an atomic bond or a multi bond
When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an object circles an external axis (like the Earth circles the sun) it is called a revolution.
I believe the answer is D. <span>The hypothesis is revised and another experiment is conducted.</span>
The kinetic energy would be 53,775J:)