Center of mass

Roller coasters are a must see attraction in amusement parks around the world, even though they are a good source of entertainment not many are aware of how roller coasters actually function. Even though each and every roller coaster is unique all of them work under the same concept. Most roller coasters start out by ascending to a higher surface which is done to build up enough potential energy to power the carts throughout the entire ride. Energy is usually defined as the ability or…

The Archers Paradox What is it? Have you ever heard the term “Straight as an arrow”? Well, this isn’t exactly accurate. Arrows don’t exactly fly straight, they twist and bend as they fly. When you draw back and release your bowstring the large force of kinetic energy stored in the limbs gets transferred into the arrow and this force causes the spine of the arrow to start bending as it gets pushed forward. The archer’s paradox is this bending of the arrow around the bow as it is being loosed…

Seatwork: A. Convert the following rotation to degrees and revolution. 1. 1/3 rotation : counterclockwise 2. 4/5 rotation : clockwise 3. 13/3 rotation clockwise B. Change each radian measure to degree measure and sketch the angles in standard position. 1. / 3 rad 2. -3 / 4 C. Determine which of the following angles are quadrantal angles. 1. 850 = __________________ 3. 5600 = ___________________ 2. 2700 =…

Have you ever wonder what the difference IS between a longboard and a skateboard? You will learn the many differences and similarities between the two. First I will tell about the Skateboard, A skateboard is 28.5 inches in length and 7.5 inches in width. It has small wheels only measuring at 2.04 inches wide. The wheels are designed for short travel and traction. Because of this that means it isn't made for cruising like a longboard. The average truck size for skateboard is 6.5 inches in…

1. Describe a roller coaster design that the cart was not able to travel through safely. There was only a few things that would make a roller coaster design dangerous for the cart. One example would be how pointy the angle was for of each hill. The more pointy the hills, the more dangerous the landing of the cart would be. Another example would be the height of the loop of the roller coaster. The loop should be high enough so that the cart could travel with more energy. 2. Describe a…

recognized that his first law needed some additional explanation because most of the motion we observe around us undergoes changes and is the result of one or more applied forces; therefore, Newton wrote a Second Law of Motion which relates force, mass, and acceleration. Newton's third law of motion is often called the law of action-reaction. In the most basic definition of a force, it is a push or a pull. Newton recognized that a force was actually an interaction between two objects; example,…

PACE Speech The problem I researched for this experiment was to see if the weight of a ball affects the speed that ball in travel at when shot or thrown. While researching this I found out that many different sports involve arm strength to throw an object far or at high speeds and many athletes don’t have enough arm strength or maybe don’t have much at all, but for every sport there is always a workout plan to increase what is needed. To increase your arm strength, the weight of a ball is a…

Superb Lyrebird page 1 of 2 Body Structure: The Superb Lyrebird is a species of Menura novaehollandiae, the Lyrebird has short rounded wings and the birds typical weight is around 2.2lb(Kg).The typical size of Lyrebird is about 100 centimeters long, for females its around 74 to 84 centimeters.The birds physical adaptations are the Lyrebirds wonderful variation of colorful feathers and keen sense of smell that allows the bird to smell out its prey. Lyrebirds colors…

Calorie Intake As stated before, my client is a 22 year old female who is 5 feet 7 inches tall, weighs 135 pounds, and has a body mass index (BMI) of 21. By using the Harris-Benedict Equation in the Clinical Calculation box 22-5, I calculated that my client’s body needs a total of 1,989.60 kilocalories every day for energy (Lutz, Mazur, and Litch, 2015, p. 523). Looking back at my client’s food dairy, I can see she ingested a total of 7,000 calories in that three day period and, according to my…

Drum servo relates to drum brakes but more specifically the leading and trailing edges of the shoes. Drum brakes can have effective self-servo characteristics based upon which way the shoes are hinged, this has the effect of increasing stopping power without any additional effort by the driver because the rotation of the drum. The shoes within the drum have a leading edge and a trailing edge and are designed so that the leading edge comes into contact with the drum before the trailing edge. The…