Category: Physics

What are the 5 levels of the Physical Activity Pyramid? Learn the 5 steps of the Physical Activity Pyramid Moderate Physical Activity. Moderate physical activity is the first step in the Physical Activity Pyramid, and it should be performed daily or nearly every day. Vigorous Aerobics. Vigorous Sport and Recreation. Muscle Fitness Exercises. Flexibility Exercises. […]

What is rapidly renewable materials? The USGBC defines “rapidly renewable” as a material that’s able to regenerate itself in 10 years or less. That includes bio-based products made from plants harvested on a 10-year (or shorter) cycle. Rapidly renewable materials include linseed, straw, cotton, wheat, sunflowers, natural rubber, bamboo, and cork. Is Bamboo rapidly renewable? […]

What is the use of chloroplast in our daily life? The chloroplast absorbs the energy in sunlight and uses it to produce sugars. Chloroplasts play an important part in the process of photosynthesis in some organisms. The chloroplast absorbs the energy in sunlight and uses it to produce sugars. What is chloroplast in real-life? Chloroplasts: […]

Does UV light break down ozone? UV light will create ozone from atmospheric oxygen at short wavelengths of less than 240 nanometers (nm). UV light will also destroy ozone and break ozone back down into atomic oxygen (O) and diatomic oxygen (O2) at wavelengths from about 200 nm to 315 nm. How do you kill […]

What is an example of screw? Some examples of the uses of a screw are in a jar lid, a drill, a bolt, a light bulb, faucets, bottle caps and ball point pens. Circular stairways are also a form of a screw. Another use of the screw is in a device known as a screw […]

What is difference between bacteria and archaea? Difference in Cell structure Similar to bacteria, archaea do not have interior membranes but both have a cell wall and use flagella to swim. Archaea differ in the fact that their cell wall does not contain peptidoglycan and cell membrane uses ether linked lipids as opposed to ester […]

What cartilages of the larynx play the most important in sound production? The arytenoid cartilages are roughly pyramidal masses of cartilage that sit on top of the posterior side of the cricoid cartilage. These tiny cartilages play a vital role in the production of sound and act as the pivot points for the vocal folds […]

What is the lowest passing grade? D Are BS a good grade? If you really are focused on bringing your grade up, consider asking for any extra credit you may be able to complete A B- is still a good grade, so don’t stress yourself. A grade of B will not keep you out of […]

Is force dimensionless quantity? The ratio of the internal forces to the external forces will depend upon its speed, and the viscosity of the fluid, and the size of the body. But the ratio of the internal to the viscous forces is dimensionless, so it must depend on some combination of the viscosity, speed V […]

How do I raise the pH in my pool without alkalinity? Use Aeration to Raise Pool pH (and not Alkalinity) You can’t, but you can raise pH without affecting Alkalinity. This is done by lowering the pH and Alkalinity with pH Decreaser, then raise the pH through aeration. Just add air! How do I fix […]