Why gold leaves are used in Electroscope? A gold-leaf type electroscope is a device used to detect the presence of electric charge on a body and its relative amount. They also capture charge leaking through the air that could accumulate on the glass walls, and increase the sensitivity of the instrument. What happened when you […]
What is the direction of the magnetic lines of force?
What is the direction of the magnetic lines of force? Lines of force always form individual CLOSED LOOPS around the magnet. Lines of force have a definite DIRECTION from North to South. Lines of force that are close together indicate a STRONG magnetic field. Is a magnet made with iron nickel or cobalt? There is […]
What is the Mid Atlantic Ridge and why is it important?
What is the Mid Atlantic Ridge and why is it important? Mid-ocean ridges are geologically important because they occur along the kind of plate boundary where new ocean floor is created as the plates spread apart. Thus the mid-ocean ridge is also known as a “spreading center” or a “divergent plate boundary.” The plates spread […]
How many molecules are in a mole?
How many molecules are in a mole? The mole is represented by Avogadro’s number, which is 6.022×1023 atoms or molecules per mol. What is silica composed of? Silica (quartz): Silica, SiO2, is a chemical compound that is composed of one silicon atom and two oxygen atoms. It appears naturally in several crystalline forms, one of […]
Can oil in water be separated by decanting?
Can oil in water be separated by decanting? Decantation can be used to separate immiscible liquids that have different densities. For example, when a mixture of water and oil is present in a beaker, a distinct layer between the two consistency is formed, with the oil layer floating on top of the water layer. How […]
What are the factors affecting transportation?
What are the factors affecting transportation? Let’s look at some of the factors that affect transportation costs. Fuel costs. The labor market for commercial drivers. Demand for freight. Customer loyalty. Vehicle capacity. Government regulation. Geopolitical events. Your reputation as a merchant. What is one of the major factors influencing driver performance? Attitude as a Factor […]
When two variables decrease Together they are?
When two variables decrease Together they are? Positive correlation is a relationship between two variables in which both variables move in tandem—that is, in the same direction. A positive correlation exists when one variable decreases as the other variable decreases, or one variable increases while the other increases. How do you find the relationship between […]
What does the coefficient of static friction depend on?
What does the coefficient of static friction depend on? Already Coulomb presented experimental evidence that the static coefficient of friction may depend on time, on normal force, on the contact size, on the nature of contacting materials, and on the presence of intermediate lubricant layers. What is the static coefficient of friction? The coefficient of […]
Is RNA the same as DNA?
Is RNA the same as DNA? There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine. What is RNA and function? The […]
Why is healthcare an imperfect market?
Why is healthcare an imperfect market? The market for health-care services is considered an imperfect market because — 1)Health care is a heterogeneous product, as the patient can experience a range of outcomes; 2) Patients who are insured have third-party payers covering their direct medical expenses; and 3) A “market price” is lacking, i.e., no […]