At what distance from the centre of the earth the value of acceleration due to gravity g will be half that on the surface.

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.)

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Ways that industry and agriculture use physical properties to separate substances