A beam of laser light of wavelength 532.2 nm strikes a thin slit 0.00375 mm wide. After the light passes through the slit, what is the largest angle relative to the original direction of the beam at which the waves are completely canceled when viewed at a far distance from the slit? 3.56
7.12
1.58
9.24

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )