Recent content by Lnewqban

Your equations and results are correct. I would skip the calculation of the moments in balance, because the pin B is not resisting any of it.

Also, that behavior dramatically changes with age (exposition time to UV light and ozone) and temperature. If some kind of friction is involved in the deformation, lubrication also changes the behavior much.

Welcome! :smile: Please, see: https://en.wikipedia.org/wiki/Hysteresis#Elastic_hysteresis You can experiment yourself, and feel higher resistance at the beginning of a deformation induced by a force. Motorcycle's tires do not like sudden applications of loads, according to my personal...

Torque-free hinges are freely articulated or pinned connections between two members of any structure or armature, or between one member and a solid basement, like the ground, or a wall, or a concrete slab. Those are unable to resist a circular movement with an opposite moment or torque...

I would like you to study the following link, which shows how internal forces transfer the external load to the wall: https://www.jlconline.com/Training-the-Trades/beam-stress-and-strain-a-lesson-in-statics_o Bending stress is frequently avoided because it induces internal tension, compression...

No considering any possible effect of air, the volume of pumped liquid should decrease as the level in the container decreases.

Since there is no energy loss to the environment in this case, the initial thermal energy of each mass of liquid becomes the final thermal energy of the mix. Please, see: https://www.engineeringtoolbox.com/heat-capacity-d_338.html...

Correction: Then we are adding 0,35 kg of water at 20 °C into the cup. Could you show us how did you arrive to that amount?

Not if you look at your system as a whole, which is actually remaining in static balance while supporting exterior forces. Please, take a glimpse to the diagram shown in post #6 above. Just asking you again: What do you consider to be your system in static equilibrium? Analysis of the many...

Also, please see: https://www.engineeringtoolbox.com/water-content-compressed-air-d_1275.html https://www.atlascopco.com/en-us/compressors/wiki/compressed-air-articles/what-is-condensate-in-air...

Welcome! The water vapor contained in trapped atmospheric air changes volume much more dramatically than air with changes in tire temperature. For each combination of internal pressure and temperature, humid air absorbs and condensates different amounts of water. Water may affect metal parts of...

... but the system is in static equilibrium. You are incorrect, because you are confusing a node or point of intersection of two members with a system. By the way, point D is not said or represented to be a hinge, and therefore, it transfers a moment to the diagonal brace as well, which becomes...

For the armature to remain in static equilibrium, external forces and/or moments must be balanced by opposite external forces and/or moments. You will study what happens inside the armature at a later date.

The diagonal brace does not need to exist for the external forces and moment to remain the same. We could visualize the represented armature as a L-shaped or T-shaped piece of steel, or as a solid polygon: the calculated values would be exactly the same. In problems like this one, the analysis...

The value of the increased lift force at the bottom of the loop is the only net force that induces the airplane to deviate from a level horizontal flight. In order to describe a perfect vertical circle, any aerobatic pilot must change the generated lift along the circle via more or less gradual...