Wednesday, October 1, 2008

What Colour Goes Well With Blue On A Bmx

home


Consider a vacuum cleaner whose suction nozzle (see diagram) has the size in the forward direction. For height h
the ground, it can be assumed that the suction power remains constant and known value F and that a particle can be considered " sucked " if it reaches the quota h speed v 0 note.
Under these conditions, notes that the sizes: l, h, F, v 0 gravitational acceleration g , determine: The maximum M mass drawn through the vacuum cleaner quiet.
The little problem is not easy (deliberately) but can be solved using the laws of dynamics.
I look forward to attempts to solve, even partially, to the authors of which will be assigned a (+), then if someone finds the correct solution and then complete: (++++).
Enjoy!

Thursday, September 4, 2008

Take A Shower After Leg Waxing



Imagine being on a ship that moves with uniform rectilinear motion in one direction (no need to know neither the direction nor the speed). In a time sighted another vessel that moves with uniform rectilinear motion in one direction with the accident of your ship.


Do you have a problem! The two ships are " collision course? " that is, if neither of the vessels change their motion, there will be a time when you are in the same position?




you what you need to answer: a pair of binoculars with which you can see the details of the second vessel that can hold consistently pointed in any direction of sight.

Try to find the method by which to respond to your dilemma alarming!

Bonuses: 4 + for the correct solution; 1 + for any significant contribution.

Sunday, December 2, 2007

Denise Austin Boot Camp Calories Burnt

collision course for the C IV

Question consequent to the task on Angular Momentum


exercising the rotating disk make the assumption that between the circle and the part intena there is friction. If the initial conditions remain the same: the internal disk and corona are in solidarity and in rotation, upon the mechanism that initially stopped outside the outer ring (no matter how that happens). What is the kinematics of different parts of the mechanism after the operation?


Deadline: Saturday, December 9 to 24.

Bonuses: + for action;

+ + for a significant intervention;

+ + + + for a remedial action.


Buo fun.