Problem 1.34 prove p that in the absence of external forces, the total angular momentum (defined as l = α r α × p α ) of an n-particle system is conserved. [hints: you need to mimic the argument from (1.25) to (1.29). in this case you need more than newton’s third law: in addition you need to assume that the interparticle forces are central ; that is f αβ acts along the line joining particles α and β. a full discussion of angular momentum is given in chapter 3.]

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.