A charge of +8.0 x 10^-19 Coulombs stands 14 millimeters away from a charge of +4.8 x 10^-19 Coulombs. What is the electric force between them? Do they attract or repel?

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.

The momentum of an isolated system is conserved a) only in inelastic collisions. b) only in elastic collisions. c) in both elastic and inelastic collisions

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot