Category: Physics

What are the effects of heating and cooling on a sounded solution? When you heat a saturated solution the molecules of liquid acquires more kinetic energy and move away from each other eventually creating more space for solute to dissolve hence solubility increases whereas on cooling molecules of liquid loses kinetic energy and come closer […]

Does a single raindrop illuminated by sunshine disperses? Does a single raindrop illuminated by sunlight deflect light of a single color or does it disperse a spectrum of colors? It disperses a spectrum of colors, by both reflection and refraction. “Each color is partly refracted out into the air, and partly reflected back into the […]

What is the O layer in soil? O HORIZON- This is the top layer of soil that is made up of living and decomposed materials like leaves, plants, and bugs. This layer is very thin and is usually pretty dark. A HORIZON- This is the layer that we call “topsoil” and it is located just […]

What are the stages of response by the immune system to infection? The normal immune response can be broken down into four main components: pathogen recognition by cells of the innate immune system, with cytokine release, complement activation and phagocytosis of antigens. the innate immune system triggers an acute inflammatory response to contain the infection. […]

What type of air pollution is most harmful? Of the six pollutants, particle pollution and ground-level ozone are the most widespread health threats. EPA calls these six pollutants “criteria” air pollutants because it regulates them by developing limits that are based on human health and/or environmental criteria. Learn more about criteria air pollutants. Which air […]

How do you survive a CME? The majority of what you should do to be prepared for a widespread CME or EMP attack is the same as pretty much everything else: store water and food for short periods of disaster and have a sustainable water and food supply for long hauls, learn how to protect […]

How does the length of a straw affect the pitch? When the length of the straw changes the sound or pitch changes. Pitch is how high or low a sound is perceived. The longer the straw the lower the pitch – the shorter the straw the higher the pitch. Why does the size of a […]

What is prokaryotic cell give an example? Bacteria are examples of the prokaryotic cell type. An example is E. coli. In general, prokaryotic cells are those that do not have a membrane-bound nucleus. Besides bacteria, the cyanobacteria (blue-green algae) are a major group of prokaryotes. What are the two major types of eukaryotic cells? Eukaryotic […]

What is the world doing to stop global warming? For example, improvements to energy efficiency and vehicle fuel economy, increases in wind and solar power, biofuels from organic waste, setting a price on carbon, and protecting forests are all potent ways to reduce the amount of carbon dioxide and other gases trapping heat on the […]

How can you tell if a book is worth money? The easiest way to know how much your copy of a book is worth on the open market is to check on how much similar copies are currently being offered for. Fill out this form with enough information to get a list of comparable copies. […]