Category: Physics

What brightness and contrast settings is best for eyes? Most people are comfortable with the contrast set around 60 to 70 percent. Once you have your contrast where you like it, you can move on to the brightness setting. The goal here is to get the light coming out of your monitor similar to the […]

Does HCN have a dipole moment? (d) HCN is a linear molecule; it does have a permanent dipole moment; it does contain N, however the nitrogen is not directly bonded to a hydrogen. Therefore dispersion forces and dipole-dipole forces act between pairs of HCN molecules. Is HCN a strong acid? Strong acids are 100% ionized […]

What constellation is the sun in on March 21? “Why is the vernal equinox called the “First Point of Aries” when the Sun is actually in Pisces on this date?” The Sun used to be “in” the constellation Aries on the first day of spring, otherwise known as the vernal equinox. Has NASA changed the […]

Will 2020 be a hot summer? We predict summer 2020 will be warmer and drier tan average overall. We think this summer will be around 1C to 1.5C above the long term average. GWV expects all three summer months to have above average temperatures with an equal chance of July or August being the hottest […]

What is the principle of inertia? Law of inertia, also called Newton’s first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by […]

What is meant by order of magnitude? Orders of magnitude are used to make approximate comparisons. If numbers differ by one order of magnitude, x is about ten times different in quantity than y. If values differ by two orders of magnitude, they differ by a factor of about 100. How many seconds are present […]

What is the most important contribution in biology today? Some of the most important discoveries, which have occurred in the past 50 years, are bacterial insulin synthesis, gene therapy, stem cell technology, somatic cell nuclear transfer, transgenic organisms and organ transplant technology. Who is the greatest biologist in history? Top ten biological discoveries Charles Darwin […]

Why load is connected in parallel? In the parallel system, each of the load elements is connected across the same terminals, therefore each has the same voltage drop: Voltage across each resistor is the same as the voltage across the parallel combination. Can different solar panels be connected in parallel? The basics of connecting different […]

Which blood type is most intelligent? AB What blood type clots the fastest? But the biggest difference had to do with blood clots in the veins. Compared to people with type O blood, individuals in the type A and B groups were 51% more likely to develop deep vein thrombosis and 47% more likely to […]

What is the best definition of categorical? The definition of categorical is something that is absolute or without conditions, or that is related to classes or divisions. An example of something categorical is an absolute denial that a witness lied under oath. Which one of the following can best be described as a categorical variable? […]