What gases can be a threat when they are part of the air inside your home? How would you determine if they are present? At what level do they present a threat? Air Pollution: Air pollution is pollution that is m...
A typical altitude might be around 13,000 feet (4,000 meters), which gives the jumper about 60 seconds of free fall -- the term used in skydiving to describe the moment the jumper exits the plane. It is possible to go as high as 16,000 feet (4,900 meters) without supplemental ...
Human beings are not aware of the environment. People often say: its great for children to study on a clean campus. But this is not the case. Now there are paper planes everywhere on the campus. Looking at the classroom again, it is not too much to describe it as "garbage pile", bu...
It’s not unusual for anyone to wonder how drones fly. Some may consider it a miracle but we’d like to describe it as physics in action. Remember we mentioned earlier how motors and propellers work together. Well, they’re responsible for drones flying. The motors spin the propellers whil...
Current space-farming experiments examine different aspects of farming in microgravity (a term to describe an environment with little or no gravity). These experiments could be helpful in the related case of farming on the surface of the moon or Mars, which have significantly lower levels of grav...
How can you separate 1.0-L samples of O2 and H2 if they each have the same average velocity? Describe how the separation of mixture is done using thin layer chromatography. What fragments are formed by dehydration of butan-2-ol? What fragments might you expect in ...
particularly for fighting as a joint force fully leveraging such technical capabilities—transformations which are difficult to qualitatively evaluate. The air war over Ukraine, after all, has dramatically illustrated how air forces can perform much worse, or better, than one might infer from tec...
You can describe all of the interactions between the object and reference beams, as well as the shapes of the interference fringes, using mathematical equations. This makes it possible to program a computer to print a pattern onto a holographic plate, creating a hologram of an object that doesn...
The second description we will call thePopular Explanationwhich is based on the Bernoulli principle. The primary advantage of this description is that it is easy to understand and has been taught for many years. Because of its simplicity, it is used to describe lift in most flight training man...
Describe the principle and action of a hydraulic press giving a simple diagram. How can we determine whether a needle of a compass is magnetized? How would you align the deflection magnetometer? How can we calculate tension? Compare and con...