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In a relay race, each contestant run 25.0 m while carrying egg balanced in a spoon, turns around, and comes back to the starting point. Edith runs the first 25.0 m in 20.0 s. on the return trip she is more confident and takes only 15.0 s. what is the magnitude of her average velocity for
a) the first 25.0 m?
b) the return trip?
c) What is her average velocity for the entire round trip?
d) What is her average speed for the round trip?
illustrates several of the concepts used in this problem. A single electron orbits a lithium nucleus that contains three protons (+3e). Determine the kinetic energy of the electron
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A double-slit experiment has slit spacing 0.140mm. What should be the slit-to-screen distance L if the bright fringes are to be 5.00mm apart when the slits are illuminated with 652nm laser light
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