On a flat field, a ball is kicked and given an initial velocity of 28 m/s at an angle of 20 degrees above the horizontal. -What are the x and y components of the ball’s initial velocity?
-From the moment it is kicked, how long will it take for the ball to reach its maximum height?
-What is the maximum height of the ball?
-Find the horizontal distance between the point at which the ball was kicked and the point where it lands.

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.

What is the coefficient of kinetic friction μk between the block and the tabletop?

The total amount of energy contained in an object