In 2021, Major League Baseball (MLB) pitchers implemented a policy to suspend pitchers who were caught using substances on their fingers to improve their grip on the baseball and the spin rate (spin velocity). Explain why “some” pitchers used the foreign substances on their fingers using the concept learned in class. (1pt) 

The volleyball player is now landing after hitting the ball. Describe how you can calculate the average landing force that acted on the body during landing (i.e., from the time of initial contact with the ground to the end of downward motion) using the work-energy relationship. Make sure to provide your answer in complete sentences and explain your answer clearly to receive a full credit. (3pt) 

Describe why and how the high altitude of the football stadium affect the distance the football travel during a field goal kick. Make sure to explain your answer to receive full credit. (2pt) 

Integrals 2:

Calculate the proportion of the variance in the risk of engaging in cyberbullying that is explained by self-esteem . [color1]

Trig 1

Taylor 1:

Trig 2:

Integrals 4:

Simplify (3+6i) – (-8 + 2i)