Category: Physics

Can protein pass through cell membrane? The cell membrane is selectively permeable . It lets some substances pass through rapidly and some substances pass through more slowly, but prevents other substances passing through it at all. Very large molecules such as proteins are too big to move through the cell membrane which is said to […]

Why is the sun called the heart of our solar system? The Sun is a yellow dwarf star, a hot ball of glowing gases at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit. […]

What is the period of the circular motion? The time for one revolution around the circle is referred to as the period and denoted by the symbol T. Thus the average speed of an object in circular motion is given by the expression 2•pi•R / T. Often times the problem statement provides the rotational frequency […]

How can I reduce sebum production naturally? Treatment Wash regularly. Share on Pinterest Washing with warm water and a gentle soap can reduce the amount of oil on the skin. Use a toner. Astringent toners that contain alcohol tend to dry out the skin. Pat the face dry. Use blotting papers and medicated pads. Use […]

What is symbiosis explain? Symbiosis is the interaction between two different organisms living in close physical association. A pair of commensal amphipods living on a sponge stalk. In a mutualistic relationship, both animals benefit from living together. What is symbiosis very short answer? 1 : the living together in more or less intimate association or […]

Why is transformation important in image processing? Transform methods in image processing An image transform can be applied to an image to convert it from one domain to another. Viewing an image in domains such as frequency or Hough space enables the identification of features that may not be as easily detected in the spatial […]

What is the best way to clean a CD disc? They are usually best left alone unless they skip or cause other problems. If they need a clean, you can blow the dust off then wipe them down with a damp lint-free cloth. Distilled water and microfibre cloths are recommended. How do you clean CDs […]

What is meant by ergonomic? “Ergonomics is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system, and the profession that applies theory, principles, data and methods to design in order to optimise human well-being and overall system performance.” What is ergonomics in safety? Ergonomics can roughly be […]

How long after a dog gives birth can she eat? Female dogs do not generally eat immediately after giving birth. They wait around 12 hours before their first meal. If your dog refuses to leave the puppies and eat, you can tempt her with foods she likes the best. How many times a day should […]

What is the ideal defect density? The most common standard of “good” defect density is one defect per 1000 lines of code (or KLOC). What is the defect density? Defect Density is the number of defects confirmed in software/module during a specific period of operation or development divided by the size of the software/module. It […]