Aslit 0.240mm wide is illuminated by parallel light rays with a wavelength 600nm . the diffraction pattern is observed on a screen that is 3.50m from the slit. the intensity at the center of the central maximum (theta = 0) is 4.10�10? 6 w/m^2. what is the distance on the screen from the center of the central maximum to the first minimum? what is the intensity at a point on the screen midway between the center of the central maximum and the first minimum? expert answer

Wo dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).