If a particle is confined to move on a spherical surface of radius a, 7 to denote its position vector, then show that the projection ormal ê, is always (a) (5 poi and we use of the acceleration d2r/dt2 along the instantaneous surface - (dr/dt)/a. ) suppose the particle is executing a uniform circular motion along a latitude on the surface of our (spherical) earth of radius a. its speed is u. what itude and direction of its instantaneous centripetal acceleration? (c) (2 points) show that parts (a) and (b) are self-consistent.

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

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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.