An angstrom (symbol A) is a unit of length, defined as 10-10m, which is on the order

Question:

An angstrom (symbol A) is a unit of length, defined as 10-10m, which is on the order of the diameter of an atom.
(a) How many nanometers are in 1.0 angstrom?
(b) How many femtometers or fermis (the common unit of lengthy in nuclear physics) are in 1.0 angstrom?
(c) How many angstroms are in 1.0 meter?
(d) How many angstroms are in 1.0 light-year (see Problem 22)?