Free body diagrams close free body diagramA simplified drawing of an object or system showing the forces acting on it. The forces are shown acting away from the centre of a box or dot. are used to ...

Free body diagrams do not need to be drawn to scale but it can sometimes be useful if they are. It is important to label each arrow to show the magnitude of the force it represents. The type of force ...

Scientists succeeded in imaging the photocatalytic function of nanoparticles with unprecedently high resolution, which may provide a new tool for nanotechnology and optical manipulation of tiny ...