- Scale of 3 inches = 2 feet. If the photo is 7.5 inches long, how many feet long is the painting?

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Does the nature of the electron has the same duality a the photon? Two dice are rolled. The sum of the dice is a 8 or a 12. Compute the probability of the compound event occurring.? A ball moves 10 kg with speed 10m/s of second ball mass 30 kg horizontal surface. what is speed of second ball of 1st ball rebound 5 m/s? 2/8 and 3/8 of 1yard strings how much of the string left? Why do we use insulators on conductors?