Crests and Troughs.

FIL- Yay. We just submitted our poems, and we were dismissed. ^_^
MATH- We had a quiz a while ago. As expected, I was brushed off in the tournament. My opponent in the elimination round? The highest scorer in the section. =))
STR- Yay. Aircon. XD
CHEM- Long test...
ELECTIVE- Go, Water bottle! Higher! Higher! W00t! Our water-powered-rocket-like bottle went about 2 stories high. =))
LUNCH- Once again, by pure accident, I humiliated myself. In fact, it was so disgusting, I don't even WANT to post it here. (Wait, I just did. XD) =|
PHYSICS- What FORCE is part of a flower? ...It's centriPETAL force! =))
COMSCI- Walkout. =]
SOCSCI- Middle Ages.
HW- Physics. =| I think the HW is in the Third Edition. I don't see it here. (5th edition) =|
...
...Can you guess why the title is as such? =P


=====EDIT: PHYSICS HW=====
5. What is the max speed with which a 1000 kg car can round a turn of radius 85 meters on a flat road if the coefficient of friction between tires and road is 0.60? Is the result independent of the mass of the car?

6. How large must the coefficient of friction be between the tires and the road if a car is to round a level curve of radius 68 m at a speed of 55kph?

7. A coin is placed 13.0cm from the axis of rotating turn table of variable speed. When the speed of the turn table is slowly increased the con remains fix on the turntable until a rate of 42 rpm is reached at which point the coin slides off. What is the coefficient of static friction between the coin and the turn table?

8. At what minimum speed must a roller coaster be travelling when upside down at the top of a circle if the passengers are not to fall out? Assume a radius of curvature of 8.0m.

~Thanks, Kit! =]