Bragg diffraction uncertainty in performing a microwave diffraction activity, you determined that the spacing between the atoms was given byd a/2sin0) assuming a wavelength of a 2.90 cm, if you measured the peak angle to be @-25" â± 3.5", what is the uncertainty in your measured separation due to the uncertainty in your measured angle,

Auniform electric field exists in the region between two oppositely charged plane parallel plates separated by a distance of 1.60 cm . a proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval of 3.20×10-6 s. 1-find the magnitude of the electric field. use 1.60×10-19c for the magnitude of the charge on an electron and 1.67×10-27kg for the mass of a proton 2-find the speed of the proton when it strikes the negatively charged plate