Recent content by gallimaufry

lets say we have a balance with these masses attached: 1) 11g mass at 7cm to the left of the fulcrum 2) 32g mass at 16cm to the left of the fulcrum 3) 11g mass at 7cm to the right of the fulcrum 4) 32g mass at 16 cm to the right of the fulcrum This balance should be...

I guess it is a continuation, but i just wanted to draw out the problem. I am trying to solve for the unknown mass which is placed on one side of the balance. The things i know are the mass of the object on the other side, the angle the unbalanced balance is at, the distances the objects are...

How would you solve a problem like this. I am assuming its torque. You have to find the mass of the box on the left. Thanks for the help.

How do strain gauges work, this might be a good idea except i left out the trick to the challenge. When you show your device you will be given a mystery material that you will have to incorporate into the scale. So the more simple, the harder it is to incorporate a random material. I will look...

You cannot use any pre-made scales and the scale must also be able to run on batteries no more than 12 volts. Thanks for the reply!

The goal is to find the weight of an unknown mass by building some sort of device. The mass given can be anywhere between 10g and 2000g. Once the mass is given to you, the only thing you can do is place it on your device and that's it. You are not allowed to touch the device afterwords. The...