An electron microscope is observing detail on a virus down to 5.0 x 10^-9 m. How fast must an electron in the microscope be moving to observe detail this size? (Hint: Due to diffraction effects, an electron's wavelength must be about the same size or smaller than the object being observed.)

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.