  The particle, string and membrane charge multiplets are derived in detail
from the decomposition of the l1 (charge) representation of E(11) in three,
four, five, six, seven and eight spacetime dimensions. A tension formula
relating weights of the l1 (charge) representation of E(11) to the fundamental
objects of M-theory and string theory is presented. The reliability of the
formula is tested by reproducing the tensions of the content of the charge
multiplets. The formula reproduces the masses for the pp-wave, M2, M5 and the
KK-monopole from the low level content of the l1 representation of E(11).
Furthermore the tensions of all the Dp-branes of IIA and IIB theories are found
in the relevant decomposition of the l1 representation, with the string
coupling constant and $\alpha'$ appearing with the expected powers. The formula
leads to a classification of all the exotic, KK-brane charges of M-theory.
