A ramp with a length of 6 m and a height of 2 m. what Is the MA

Use the empirical rule. the mean speed of a sample of vehicles along a stretch of highway is 70 miles per hour, with a standard deviation of 4 miles per hour. estimate the percent of vehicles whose speeds are between 66 miles per hour and 74 miles per hour. (assume the data set has a bell-shaped distribution.)

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A2k pendulum has a speed of 1 m/s at a height of 1/2 meter