The velocity of a 3.00 kg particle is given by v = (8.00ti + 3.00t2J) mis, with time t in seconds. At the instant the net force on the particle has a magnitude of 35.0 N, what are Fig. 5-40 34. the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's direction of travel?
Chapter 28: Physical Optics Interference and Diffraction If two waves occupy the same space, their amplitudes add at each point. They may interfere either constructively or destructively Conditions for dark fringes (destructive interference) in a twoslit experiment: dsinα = m− 1 λm=1,2,3,… o Above central bright fringe: ( ) 2 1 o Below central bright fringe: inα = ( ) 2 λm=−1,−2,−3,… Interference is only noticeable if the light sources are monochromatic (so all the light has the same wavelength) and coherent (different sources maintain the same phase relationship over space and time) Interference will be constructive