[填空题]
Protons are accelerated from rest across 550 V x83dxya/xg w-3+eiojga)0 w h. Thep tk0l.+ jerr-rg1)n dy are then directed at two slgr0+.tekd) r- r1p lnjits 0.70 mm apart. How far apart will the interference peaks be on a screen 28 m away? $\Delta y$ = nm
