The moon takes about 1 month to orbit earth (more precisely, about 27 1/3 days), and it travels in the same direction that earth orbits the sun. therefore, during the time it takes the moon to complete one orbit around earth, earth moves around its orbit of the sun. mastering astronomy

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.)

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.