An electron with initial kinetic energy 5.1 ev encounters a square potential barrier with height 10.0 ev .what is the width of the barrier if the electron has a 0.60 % probability of tunneling through the barrier? express your answer to two significant figures and include the appropriate units.

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached

The answer is periosteum