Juan is at cross country practice and is told by his coach to run a total of 1000m. If each lap is 400m, how much is his displacement? Is it the same as his total distance ran?

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2