Energy crisis

(e) Dalton’s Law Challenge Question: Ordinary air contains about 78% nitrogen, 21% oxygen, and small amounts of several other gases. As a diver descends, the pressure of the air he is breathing increases by about one atm for every 10 m of depth. Oxygen may become toxic and cause convulsions if it is breathed at a pressure above 1.4 atmospheres. According to Dalton’s Law, at what depth should a SCUBA diver be concerned about oxygen toxicity if he is breathing ordinary air? Discussion Points: •…

that were previously soaked in a solution of metals. These electrons get heated at the same temperature, however the energy that is needed to excite each electron in the different metals is not the same. This means that the energy levels that change are now unstable and need to cool down, and as soon as they are moved into the heat source through kinetic energy, a photon of light energy is created and this excites all electrons. The flames change colors based on the amount of excited electrons…

most of the topic are presented as a base for questions that lead to the meat of the topic. One example was that question of ``What is the original source of energy in our body?``, from the topics we learned we have to make a connection through different things to get our answer. As we need to understand that energy in our body is ATP, the energy that cells use, is produced by cellular respiration. Cellular respiration requires oxygen and glucose to happen. From that we can see that ATP is…

The water bottle rocket was to help us on our engineering skills. It was a fun project and I’m glad Coach Rob let us do it. Me and Dylan’s rocket was a great rocket except it flew on top of the gym. It flew an altitude of 87.41ft. which was ok. I thank it would have flown better if we have had a longer nose and bigger fins. The longer nose would have made it more top heavy. The bigger fins would have had a better base on it. I also made my own rocket and it flew really good. It was a 2-liter…

According to numerous bodybuilding.com the top three supplements on the market right now are creatine monohydrate, caffeine, beta-alanin5. Creatine monohydrate is known as creatine is considered one of the most effective performance supplements that improve high-intensity work capacity, muscle mass, strength, and body composition5. Creatine increases phosphocreatine stores within the muscle, allowing an increase in regeneration of ATP5. Creatine(s) effectiveness based on scientific evidence…

Making a video for marketing project can be difficult: getting students to participate, having a crystal clear concept to make an effective ad etc. Last year, I took a marketing management course where our teacher assigned the students a class project; the class project was about making a presentation and ad, coming up with our own brand name and packaging. Since it was a mega project for the whole class, it was difficult for everyone to even where to start from. Our teacher did give some hints…

The active region displayed in Figure 1 show a larger pore and several smaller pores in G-band. Bright points and several micropores are also visible. This active region was observed from 18:08 UT to 23:38 UT. However, there are three gapes from 18:42 to 19:08 20:21 to 20:47 and 21:59 to 22:26. Figure 1 shows the first image of the time series. Figure 2 illustrates the evolution of the fine structures at the inner part of the granules (i.e. towards umbra) at the pore boundary. Several dark…

Since the naming of the dinosaurs in 1842 it has been thought that their metabolisms were similar to current day ectothermic, cold blooded reptiles., In the 1960’s- 1970’s; however, it started to become apparent that an endothermic metabolism (warm blooded, like mammals) is more conformable with new evidence and observations. Originally, predictions on the paleothermometry of dinosaurs was based on the physical performance such as the estimation of running speed from trace fossils as well as…

electromagnetic range. Electromagnetic waves go through space at the pace of light (299,792 km/sec). The energy of the radiation relies on upon its wavelength and recurrence. A wavelength is the separation between the highest points of the waves. The recurrence is the quantity of waves that go by every second. The more extended the wavelength of the light, the lower the recurrence, and the less energy it contains. Light from a light or the Sun may look white; however it is really a mix of many…

must understand a few simple but, vital mechanics. The vehicle will be propelled by the pulling force of a small mousetrap. The end goal of building this car is to have it go from one end of the room to the other on top of carpet. Leverage, kinetic energy, and friction; are things to take into consideration while testing and building the car. There are two types of levers to keep in mind. The first is the lever arm that is pulling the string wrapped around the axle and is attached to the…