What is the single most important thing in a golf swing? Use the big muscles of your legs and trunk to move the little muscles of your arms and hands. So watch the players at impact – they are all the same – and that is the most important part of any golf swing. Can […]
Why is phone restricted?
How is 9.81 calculated?
Why is angular velocity negative?
Why is angular velocity negative? First definition Angular velocity is positive when the rotation is counterclockwise and negative when it is clockwise. Second definition: Angular velocity is positive when the angular displacement is increasing and negative when the angular displacement is decreasing. Does radius affect angular velocity? Linear/tangential velocity, in a circlular path, increases with […]
What brightness and contrast settings is best for eyes?
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 […]
What causes a cell to become cancerous?
What causes a cell to become cancerous? Cancer cells have gene mutations that turn the cell from a normal cell into a cancer cell. These gene mutations may be inherited, develop over time as we get older and genes wear out, or develop if we are around something that damages our genes, like cigarette smoke, […]
Does HCN have a dipole moment?
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 […]
Why is geocentric theory wrong?
Why is geocentric theory wrong? The first big problem with the geocentric model was the retrograde motion of planets like Mars. His model has the planets moving around the Sun in circular orbits. This can explain retrograde motion, but his model doesn’t fit all the planetary position data that well. Is the geocentric theory correct? […]
What is meant by order of magnitude?
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?
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 […]