Category: Physics

What cells are responsible for bone remodeling? Bone remodelling relies on the correct function of two principal cells of the bone tissue: the osteoclasts, multinucleated cells that destroy the bone matrix, and the osteoblasts, having osteogenic functions. How is excess calcium removed from the body? The body controls the amount of calcium in the bloodstream […]

Can I get rabies from touching a dead bat? Bats with rabies are often disoriented, increasing the likelihood that they end up inside a dwelling by accident. If you find yourself in close proximity to a bat, dead or alive, do not touch, hit or destroy so the bat’s brain can be preserved for rabies […]

Is tea a colloid or suspension? A mixture with particles that can be easily seen and separated by being filtered or settling. If you try to put too much sugar into a cup of tea, it will not fully dissolve and will leave some sugar on the bottom of the cup, making the tea a […]

Which one of the following circuit interrupts is most effective? Which one of the following circuit interrupts is most effective at preventing major shocks? GFCI is the right answer because others cannot shut down electricity immediately. What class hard hats will protect you from electrical shock? Class B helmets provide electrical protection from high voltage […]

What are 5 advantages of working in healthcare? 5 benefits of working in healthcare Job stability. According to the United States Bureau of Labor Statistics, the healthcare industry is projected to grow 18 percent from now until 2026, much faster than the average for all occupations. Great pay and benefits. Fast-paced workday. Opportunities for growth. […]

How do you calculate drag force in air? For larger objects (such as a baseball) moving at a velocity v in air, the drag force is given by FD=12CρAv2 F D = 1 2 C ρ A v 2 , where C is the drag coefficient (typical values are given in Table 1), A is […]

What is silver mostly used for? It is used for jewellery and silver tableware, where appearance is important. Silver is used to make mirrors, as it is the best reflector of visible light known, although it does tarnish with time. It is also used in dental alloys, solder and brazing alloys, electrical contacts and batteries. […]

Is co2 an ionic compound? No, CO2 is not an ionic compound. As per the definition, an ionic compound is a compound that is mostly formed between a metal atom and a non-metal atom. Meanwhile, CO2 is a compound that is formed between two non-metal atoms (carbon and oxygen) thus giving it a covalent nature. […]

Should you leave your manual car in gear when parked? Do not leave the car in neutral when parked However, in a manual transmission car, putting in first gear (or reverse when then the car is facing downhill) is just like putting the car in “park.” To prevent this, leave the car in the first […]

What are the 3 types of diffusion? 1 Answer. Simple diffusion, osmosis and facilitated diffusion. Why do substances move in and out of cells? Substances move in and out of cells by diffusion down a concentration gradient, through a partially permeable membrane. The efficiency of movement of substances in and out of a cell is […]