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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. 

Consider the cell with the following pair of electrodes to answer the question below: Sn(s)|Sn2+(aq); Eocell=-0.076V  MnO4-(aq) | Mn2+ | Pt(s); Eocell=+1.49V What species is being reduced during the discharge of this cell? 

A mass M is connected to a spring with constant Ks and a damper with constant Kd, and is moving with displacement x with friction Kf. Assume the input if the force f. Find the model of the following mass-spring-damper systems in the state space (find the matrices B). 

A mass M is connected to a spring with constant Ks and a damper with constant Kd, and is moving with displacement x with friction Kf. Assume the input if the force f. Find the model of the following mass-spring-damper systems in the state space (find the Newton’s Dynamic Equation). 

The prismatic joint of the robot has the length . The range of joint 1 is 

Which of the objects below has the SMALLEST gravitational potential energy?

A ball is launched into the air. While the ball is coming down from the apex:

Which of the following is INCORRECT about linear work?

4. (8 pts) Match the definitions with the appropriate type of bias or effect shown on the right.

 A Facebook news story declares that eating chocolate increases the risk of bladder cancers.  You click on the article and find that it cites a study where rats who consumed more chocolate had an increased risk of cancer depending on how much they consumed.  Rats who consumed the most had a high risk for bladder cancer whereas rats who did not consume chocolate had an extremely low risk of bladder cancer.  Cancer only developed after chocolate was consumed. All other foods given were the same across the rats. What can you conclude from this study?