Mass

Projectiles, such as the ones shot from cannons, are affected by drag or air resistance. The amount of drag exerted on to an object is affected by many different factors, such as air density and the size of the projectile. It is important to understand drag, as it affects the distance an object is able to travel if it is not influenced by outside forces, such as a cannons projectile. The equation for drag is shown below. F=pCA/2 v^2 p = The density of the air. C = The drag coefficient of the…

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…

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…

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…

For most of my life I’ve been fat. It’s always been a burden. The realization of being fat hit me when I was 13. I was struggling to find clothes that fit me and the solution my Mother found was to take me to the adult section and try on XL clothing, I knew that I my weight was a problem. Knowing that I was overweight still wasn't enough to motivate myself to change. For four years I lacked energy and self motivation to do something about my weight but two big events in my life occurred and…