Celestial mechanics

Learning Projectile Motion via Potato Launchers (Prompt 2) Launching Potatoes through potato launchers may seem like an ordinary activity that people do to have fun but principles of physics are present in this activity. Launching Potatoes through Potato launchers is an example of projectile motion, it also shows how gravity can impact acceleration. Projectile motion occurs when an object is thrown and it moves along a curve due to gravity. The only force that a project has during projectile…

The decades surrounding the quantum revolution in science have been chronicled countless times. Among the ranks of noted histories, Uncertainty by David Lindley brings a unique perspective of a classic tale. The turbulent period in science marked the evolution from absolute determinism to probabilistic interactions. After this era, entropy did not always increase, only sometimes. By following the introduction of Heisenberg’s famous uncertainty principle, Lindley represents the giants of physics…

Only about 25% of the country of Darwin is electrified. For those who are not on the electric grid, lighting is primarily done by kerosene lamps and homemade candles. Kerosene fuel can cost as much as 50 cents a night, a substantial amount of money considering most Haitians only make about 2 dollars a day. Besides cost, kerosene also has many negative health risks, specifically harmful fumes and the risk of broken glass and fire. Due to these factors, many Haitians do not have much if any…

improvements in technology, propulsion technique is still not very well understood. It can stated, however, that three basic qualities of the user-wheelchair system determine the performance: the user, who produces the energy for propulsion, the vehicle mechanics of the wheelchair, which determine power requirements to move forward or backward, and the wheelchair-user interaction, which determines the efficiency of the power or force transfer from the user to the wheelchair (Woude, 2001).…

I had the opportunity to attend a quarterly meeting at Clabber Girl Corporation. The meeting was split into two different times: one for the overnight crew and one for the day crew. The meeting involved everyone in the company, no matter the department they worked in. The meeting was held during lunch, which was a catered by the Clabber Girl Bake Shop. My first job assignment with Clabber Girl was to update and change a few of the power point slides that were going to be used in the Clabber…

Chapter 4 Questions 1. If the acceleration of an object is zero, are no forces acting on it? Explain. a. No, forces would still be acting on an object if its acceleration is zero. Acceleration is only the change in velocity and in the F=ma equation, the F stands for net force. For example, if a car was traveling at a constant velocity, it would still have forces such as gravity, friction, and normal force acting on it. 2. Only one force acts on an object. Can the object have zero acceleration?…

The knee-jerk reflex is considered a stretch reflex and is often used by physicians to test how the nervous system is functioning. The knee-jerk reflex is tested by tapping the patellar tendon with the base of a rubber hammer. This results in the leg and foot extending upward in healthy individuals. The reflex is a response to the change in shape of the patellar tendon and quadriceps muscle. It does so to prevent damage to the muscle and ultimately the maintain homeostasis. There are a series…

Giving up is easy, anyone can just say, “sup? I’m done. I’m tired of doing this. I can’t continue. I feel sick,” and give up on whatever they are doing. But not giving up is hard, which is something that could bring anyone success. In the realistic novel Flush by Carl Hiaasen and the fantasy novel Poison by Bridget Zinn, both novels presents a life-lesson to the reader not to give up easily. In the novel Poison, the main character and protagonist Kyra, tried to save her kingdom from Arlo, the…

When the soccer ball lays down in the middle of the field the object is at rest but when Hugo kicks the ball to juan the object (which is the ball) is at motion with every pass. This demonstrates Newton’s First Law, which states, “An object in motion stays in motion unless acted upon by an unbalanced force” they make a pass and it is collecting water because it is raining outside and the more water it gets filled up with the more weight and mass/pressure is being put towards the ball think of…

My car did not have a lot of friction where the axles and bearings touched in the front. In the back however, it had tape for extra support on the bearings so it did have some friction in certain cases. I used rubber wheels so the car did not have much friction on the ground but, they the wheels did have a lot of traction on the hallway floor. I tried to get the friction on the back wheels to not get as much friction so it would move more freely but, I did not succeed. In the front of the…