Force majeure

When teaching the power clean there are three phrases that must be taught in order to be successful with this lift. The three phrases are the rack position, jumping position and hang position. All three phases when combined will result in perfect form and complete the lift of a power clean. When teaching this lift the lifters must not use any weight, it is recommended to use an empty bar to properly learn the movements. The teaching progressions starts with the hang position then progresses to…

surface area by 16 and get 8,235,496,645 km away. • The sun’s mass is about 2.7 x 107 times greater than the moon’s mass. The sun is about 400 times farther from Earth than the moon. How does the gravitational force exerted on Earth by the sun compare with the gravitational force exerted on Earth by the…

joints and muscles. Shoulder and elbow are two of the joints that are involved in the movement. Of the six phases of pitching, arm cocking, acceleration and deceleration are the three phases when elbow and shoulder joints experience high magnitudes of forces (Oyama 83). Windup is the phase that occurs when the pitcher places the non-throwing hand is in front of the target. In the beginning of the arm cocking phase, the non-throwing shoulder is abducted and it’s elbow extends. The deltoid muscle…

Propulsion is a force that pushes forward or drives and object forward. This concept can be seen in action with the use of a balloon powered car; this car demonstrates a type of propulsion system in which it produces thrust and potential energy and uses the kinetic energy that it will gain from the movement to push the car forward. The thrust is obtained from the balloon which applies Newton’s third of motion that states, “for every action, there is an equal and opposite reaction.” Specifically,…

velocity, force, gravitational acceleration, free fall. I will explain the definitions of each concept, so readers will be able to get real meaning as to why these concepts consist of cheer leading. Gravity is the force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. Therefore, cheerleading involves the force of…

Forces are extremely important in a roller coaster, as they create the different sensations throughout the ride, and also help to hold you in your seat for safety. Forces on a roller coaster are measured in g's, which is how to measure gravity on the ride. The change of g's in different situations is what creates the different feelings and thrills you get on the coaster. When our marble is released at the top of the initial hill, energy is transferred from potential energy to kinetic energy.…

Conclusion The hypothesis was that extreme temperatures would affect the bounce height of a basketball. This hypothesis was accepted. The average bounce height for the regular basketball was seventy three and 3 tenths repeating. Sixty two and six tenths repeating was the average for the frozen basketball. The average was eighty-three and three tenths repeated for the heated basketball. We believe that these results are present because air molecules will expand in warmer temperatures and they…

Differences in thermoregulation patterns observed in the Monarch Butterfly, Danaus plexippus Many Lepidoptera species thermo-regulate using several patterns, physical and behavioral. These patterns are usually observed as movements from the shade and cooler areas to a place exposed to the sun as well as utilizing mechanical flight to generate heat. However, some species have intermediate behavioral patterns, often a mixture of basking and heat production, also known as endothermy (Kingsolver…

Goldberg machine’s task is to move the last piece on the chessboard to score checkmate by using the most complicated arrangement possible. In this Rube Goldberg machine, an outside source of energy is transferred through the machine when someone adds force to part of the machine therefore starting the “simple” task. The initial energy is transferred from through each object therefore creating a chain reaction and then resulting in moving the final chess piece. There are two main types of energy…

magnus effect and bernoulli principle occurring when the ball is kicked. The magnus effect is a force on a spinning ball moving through the air, taking some parts of the bernoulli principle. The bernoulli principle states that if the speed of a fluid around an object is slow then the pressure on the object…