A positive charged particle and another positively charged particle are 0.5m from each other and have a force of 16N between each of them. If the particles are moved so that they are now 1M from each other (doubling their distance), what is the new force between them? Why?

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is