Recent content by magwas

Still hoping for an answer.

Still hoping for an answer.

http://en.wikipedia.org/wiki/D%27Alembert%27s_principle

bump. I hope someone can help me with this.

bump. I hope someone can help me with this.

You can check units also by hand. And you can practice.

For example it is suspended from springs. When the egg on that part, its mass makes the part to move down to the ground, but when the egg leaves it, it will be pulled up by the springs.

Read these: http://www.allaboutcircuits.com/vol_1/chpt_14/1.html http://www.allaboutcircuits.com/vol_1/chpt_14/2.html Then tell here what you think will happen. After that we can help you with it. The forum rules are very strict on that helpers should not tell the solution, only help you to...

I used to avoid calculation errors by using a math package and always denoting the units. Your example in sympy: $ isympy Python 2.6.4 console for SymPy 0.7.0-git These commands were executed: >>> from __future__ import division >>> from sympy import * >>> x, y, z = symbols('xyz')...

you made a typo in vx, however your Px is okay. Your calculation is otherwise correct.

The speed of the egg in different intervals of the track should be carefully designed. The release mechanism could be something which is pushed down by the egg's mass, but goes up when it is rolled away.

Okay. You have the acceleration. Now you can come up with the speeds in different points of time. You can use off the self formulas in the book, just have to know which ones and in what order:)

You cannot add a work and a force, they are of different units. You have an initial speed. You have two forces acting on the spaceship: gravity and engine thrust. So what is the acceleration?

You should show some attempt at the solution. Without that we are not permitted to help. What about actually citing relevant equations and substituing them?

Basically we are talking about a system consisting of three parts: 1.) A battery, storing energy 2.) A charger, converting incoming electricity to fill the battery 3.) Regulator for consumers. Choosing 1.) determines the output voltage of charger and input voltage of regulator. 2.) Would...