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?
:

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3

Why is the use of carbon-14 limited