Visible light passes through a diffraction grating that has 900 slits/cm and the interference pattern is observed on a screen that is 2.76 m from the grating. you may want to review (pages 1197 - 1201) . for related problem-solving tips and strategies, you may want to view a video tutor solution of width of a grating spectrum. part a is the angular position of the first-order spectrum small enough for sinθ≈θ to be a good approximation? is the angular position of the first-order spectrum small enough for to be a good approximation? yes no request answer

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

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Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.