Thursday, December 11, 2008

Βοys Withοut Underwear

Physics of household: Act Three


Even the vacuum cleaner!

Consider the vacuum still at rest, the masses as to draw two overlapping (see figure): the lower mass M / 2, the upper mass M / 3 (where M is the value determined the first time that
M = F / (g ^ 2/2h + v0) (kg) )

Imagine that the two masses are glued and the vertical force of cohesion between the two is equal to the gravitational force of mass M / 2. Assuming that the suction force acting only on the higher mass (as long ago as a screen to the bottom), which of the following statements is correct (the statement used must be fully justified calculation and / or considerations):
i. The two masses are sucked simultaneously;
ii. The two masses are aspirated;
iii. The two masses are aspirated separately at different times;
iv. Is drawn only above the ground;
v. None of the above.

Reconsidering the choice even if the masses are stacked in reverse order: in the M / M 3 and above / 2, subject to the force of cohesion.
Try! the graftifiche are enticing:
(+ + + for significant contributions)
(++++ for important contributions)
(++++++++ for the full solution)

Wednesday, November 26, 2008

Gay Toilets Domain Sydney

Starting PONTORMATICA home

E 'have created a new blog: PONTORMATICA , find the link with the others, which aims to extend beyond the contributions of students, but to all persons (doecenti or not) are fields concerned to propose questions, discussions of interesting or educational.

would be important were the contributions of the authors of the teaching issue, then, in this original sense.

The Blog, after a period of experimentation, opens with a contribution from the curator (SP) that affornta a theme of nature mathematical physics.

hope is to the liking, visit us!

Steno

Sunday, October 12, 2008

Mercilon Missed 2 Pills In A Row

Physics: Physics of the vacuum cleaner running



Abstract: The post is reserved for the time being, the contributions of the class III C.

It is this: Consider now the vacuum cleaner in uniform motion in the forward direction. The suction nozzle has a length l along the forward direction (see figure).

Determine the maximum speed V and the vacuum cleaner may have if you want to draw masses of value M / 2 where M is the value of the mass drawn in a position to vacuum cleaner off (previous post).
still apply the characteristics of the previous post in relation to the suction force of the nozzle and the height from the ground.
going to try to check the "third eye ", as the physicist!
Bonuses : (+ +) for comments to be significant; Deals : (++++++) for the complete solution.

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.