Australian Defence Force

Physics Behind Archery Physics A Exam Paper Morgan Avink 11/18/13 The bow and arrow have been around for many years. The bow and arrow were used for wars in the beginning however they were more efficient for hunting and that is what they are continually used for even today with the dangerous substance of gunpowder that could be used. Guns are cool however the physics behind them is nowhere near to the elaborate physics involved in archery. Today we have three common bow types; the longbow,…

Diagram of Prototype A that consisted of an octagonal prism with a length of 11 in. or 27.94 cm. and height of 10.16 cm., while we created corrugated layers within the prism. We decided to change all the dimensions to centimeters instead of using inches as the units. Tinkercad model of Prototype B that consisted of a hexagonal prism with a length of 27.94 cm., height of 10.16 cm., and sides of the base of 4.445 cm. WIthin the hexagonal prism consisted of 6 equilateral triangles are connected…

1st, 2nd, 3rd law and aerodynamic forces had an effect on the rocket. The changes made to the rocket was that more mass was added to the rocket. Two grams of clay was added to the nose cone. The straw is 205 cm body length and there’s 3 fins on the bottom that are 4cm x 2cm. Newton’s 1st law is if an object in rest it will stay in rest unless an outside force acts on the object. Also, if an object in motion will remain in motion, unless an outside force acts on the object. For example,…

Does a track at which a car is on, affect the speed of the car? There are many different kinds of angles for tracks, they can be heading downhill, uphill, or can be straight. Sometimes the angle of the track determines the speed of the car. Potential and kinetic energy will also have an effect of the car's speed. Potential energy is taken in when the car goes up, and kinetic energy is released when the car goes downhill. I think that when the car goes down, it will go faster do to the kinetic…

Luke went to a room where it was completely empty but with Darth Vader. Darth Vader said the force is strong in my, I have it, my daughter has it, my son has it. Then Darth Vader though a light saber (a light saber is a saber that has a beam were the blade is at) Luke catches the light saber and turn it on then Darth Vader pulls out his own light…

School is an extremely stressful time and stress can easily become overbearing for those who strive for excellence in education. Some students, like myself, have part-time jobs while attending school. While upholding such a tight schedule, it can be very difficult to find time to study and do assignments. A job is a requirement so that money is accessible and payments for education are available. School can be expensive and student loans add up, so a job is needed to pay for it. Although…

universal gravitational constant. It is an empirical physical constant denoted by the capitol letter G. The gravitational constant was first used in Newton’s law of universal gravitation [1] which states that any two bodies attract one another with a force which is directly proportional to the product of the two masses, and inversely proportional to the square of the radius measured between the centers of each object(F=(Gm_1 m_2)/r^2 ). [¬¬¬2] The first physical measurement of G was performed…

purchase a specific service that would be heavily regulated by the federal government. As Obama’s symbiotic theorist Saul Alinsky revealed in his textbook Rules for Radicals about political revolutionary tactics, “Political action requires a social force.”…

Statistics Air pressure can indeed affect the distance that the football will travel. The data from the experiment proved that the more air pressure, or the more inflated the ball is, then the farther the ball will travel. When the lowest air pressure was tested, it showed that a flat ball will not travel far at all when thrown at a consistent speed. When the ball was halfway inflated, it traveled significantly farther than a fully deflated ball. Furthermore, when we inflated the ball to…

There are many treatment ideas that we can use in order to help treat our patient’s who have Volkmann’s contracture. We can make a custom orthosis/splint fabrication. The common splint that is used for Volkmann’s contracture is a resting hand splint. (Which looks like this…) As you can see, the wrist is in neutral with the digits extended and the thumb slightly abducted. This is a more natural way for an extremity to rest. A good part about making a custom splint is that you can contour it to…