harlequinscorpion45

(a) If the wavelength of an electron is 4.63 ✕ 10−7 m, how fast is it moving?
 km/s

(b) If the electron has a speed equal to 8.20 ✕ 106 m/s, what is its wavelength?

in m 

What is the difference between destructive editing and non-destructive editing in Adobe Illustrator?