Four types of electromagnetic waves are listed below. A. infrared waves
B. X-rays
C. green light
D. radio waves
Rank the waves in order of decreasing wavelength. Indicate ties where appropriate.
Rank from greatest to smallest. To rank items as equivalent, overlap them.

An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m. part a how much work is required to bring an additional electron from infinity to the origin? express your answer with the appropriate units. part b if, instead of the second electron coming in from infinity, it is initially at x = + 20.00 m on the axis and is given an initial velocity of 100.0 m/s toward the origin, does it reach the origin? part c how close to the origin does it come?