Answers by visitors named: ozy

drwls thanks so much. your solution is absolutely right haha =) i got a similar qns to that of Erin too. and managed to solve it thanks to u.

w = (6.626x10^-34 J*s)/[(9.109x10^-31 kg)(2.5x10^8 m/s)] = 2.91x10^-12 m