1. At what speed is an electron's de Broglie wavelength:
(a) 1.0 pm
(b) 1.0 nm
(c) 1.0 \mum
(d) 1.0 mm2. \lambda = \frac{h}{mv}
3. I have solved for v, and I plugged in values, it gives me, for a = 4.54 x 10^(27) m/s, the ANSWER is: 2.77 x 10^(8) ms, it's way off, I tried converting energy into...