How high above the starting point does the pebble fly

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Q. Monochromatic light ( = 630 nm) strikes a pair of slits at normal incidence, forming a double-slit interference pattern on a screen located 1.20 m from the slits. The figure shows the interference pattern observed on the screen. What is the slit separation?

Q. You shoot a 46-g pebble straight up with a catapult whose spring constant is 310 N/m. The catapult is initially stretched by 0.20 m. How high above the starting point does the pebble fly? Ignore air resistance.

Reference no: EM1349934

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