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This center of mass calculator calculates where the center of mass is located on an object.
An object can have many different masses distributed throughout it, at different distances along it (the object). The center of mass calculator calculates the distance, XCM, where along the object's length, there would be a balancing or equalization of mass from the two end points. This is like visualizing the effect of balancing a seesaw about a pivot given the two forces or masses present at both ends.
To use this calculator, the user enters in all the different masses present on throughout a given object at their various respective distances on the object.A user can enter up to 10 masses, with their respective distances, along the object, for this calculator. If a user just wants to enter, for example, 3 masses, then he or she just has to enter 3 values and leave the rest of the fields untouched.
![Calculator Calculator](http://kalence.weebly.com/files/theme/me3-builder/images/textures/MP_adept.png)
Any unit can be used to represent XCM, including meters, feet, inches, etc. However, the standard and scientific unit would be meters (m).
The center of mass can be very useful in electronics because certain electronic components such as accelerometers make use of such concepts. An accelerometer is an electronic device which responds according to different forces upon it. Different masses, which cause different weights (w=mg), exert different forces (due to the differing masses). Thus, knowing the center of mass can come in handy and be very useful when dealing with electronic components such as this.
Example Calculations
Calculate the center of mass when the mass and distance of one item is 7kg and 5 meters and mass and distance of the second item is 10kg and 3 meters.
Center of Mass= (mass of item 1)(distance of item 1) + (mass of item 2)(distance of item 2)/(mass of item 1 + mass of item 2) = ((7)(5) + (10)(3))/(7+10)= (35+30)/(17)= 3.82.
So with one item having a mass of 7kg and being located at a distance of 5 meters and a second item having a mass of 10kg and being located at a distanceof 3 meters, the center of mass is located at a distance of 3.82 meters.
Since the unit masses cancel out in the calculation, the resultant value is in whatever units the distance is entered in.
Second Example
Calculate the center of mass item 1 has a mass of 20kg and a distance of 1 meter, item 2 has a mass of 15kg at a distance of 7 meters, and item 3 has a mass of 25kg and a distance of 12 meters.
Center of Mass= (mass of item 1)(distance of item 1) + (mass of item 2)(distance of item 2)+ (mass of item 3)(distance of item 3)/(mass of item 1 + mass of item 2 + mass of item 3) = ((20)(1) + (15)(7) + (25)(12))/(20 + 15 + 25)= (20 + 105 + 300 )/60= 425/60= 7.08.
So the center of mass is 7.08 meters.
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Below is a chart that describes the ending cutscene that will you will see based on the choices you make in the game. Note that the Effective Military Strength values will slightly vary depending on your decision to save or destroy the Collector Base in Mass Effect 2 (add 300 points to each tier if you imported a save with the Collector Base intact. [Note that saving the Collector Base gives you an extra 100 EMS, so you really only have to earn 200 extra EMS.] The game assumes that you destroyed the base if you do not import a save.)
A spoiler-free version of this chart is available on the Endings page.
Destruction, Control and Synthesis Explanation[edit]
The final choice in Mass Effect 3 consists of 3 choices that play a major role in the ending cut scene: 'Destruction' (destroy the Reapers, the red side on the right), Control' (control the Reapers, the blue side on the left), or 'Synthesis' (synthesize organics and synthetics together, the green middle option).
Effective Military Strength | Choice | State of Earth | State of Normandy | Shepard's Fate |
0-1749 | Destruction | Destroyed -Vaporized | No survivors | Dies |
Control | Not an available choice | |||
Synthesis | Not an available choice | |||
1750-2049 | Destruction | Destroyed - Vaporized | No survivors | Dies |
Control | Devastated | Squadmates survive | Dies | |
Synthesis | Not an available choice | |||
2050-2349 | Destruction | Devastated | Squadmates Survive | Dies |
Control | Devastated | Squadmates survive | Dies | |
Synthesis | Not an available choice | |||
2350-2649 | Destruction | Devastated | Squadmates survive | Dies |
Control | Saved | Squadmates survive | Dies | |
Synthesis | Not an available choice | |||
2650-2799 | Destruction | Saved | Squadmates survive | Dies |
Control | Saved | Squadmates survive | Dies | |
Synthesis | Not an available choice | |||
2800-3999 | Destruction | Saved | Squadmates survive | Dies |
Control | Saved | Squadmates survive | Dies | |
Synthesis | Saved | Squadmates survive, but are 'synthesized' | Dies | |
4000-4999 | Destruction | Saved | Squadmates survive | Lives (if Anderson survived) |
Control | Saved | Squadmates survive | Dies | |
Synthesis | Saved | Squadmates survive, but are 'synthesized' | Dies | |
5000+ | Destruction | Saved | Squadmates survive | Lives |
Control | Saved | Squadmates survive | Dies | |
Synthesis | Saved | Squadmates survive, but are 'synthesized' | Dies |
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