How far does the ball travel horizontally before it lands on the ground in the picture?

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.)

According to the tide table below what time of day will the highest tide occur?

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?