Before you get ready to go diving, you really want to eat a snow cone. you know there is a small food stand on the other side of the railroad tracks near the beach. as you carefully step over the tracks (making sure to look both ways you notice interlocking joints between some of the tracks. what are these joints called? what purpose do they serve? describe thermal expansion and why these joints are necessary.

These interlocking joints are known as breather switches which are also known as expansion joints or adjustment switch. This is an intentional gap provided to allow for expansion of the rail, which may expand at different rates. These switches reduce the gap between the rails and also act as relief points for the track.

No it doesnt because it can be any number.

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.