Your advisor has given you an unknown isotope and asked you to identify it. You see fromher notes that the mass of the isotope is 228.03107 u, the atomic mass number is 228, andthat it has a total binding energy of 1742.43 MeV.(A) Find the sum of the masses of the components that make up the neutral atom. Hint:Recall that the binding energy is the difference between the rest energy of the piecesthat make up an atom and the rest energy of the whole atom when those pieces havecome together.

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

Identify and describe the three ways that mutations affect organisms.

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?