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 […]

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 […]

What constellation is the sun in on March 21?

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 […]

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 […]

How is 9.81 calculated?

How is 9.81 calculated? In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The acceleration g=F/m1 due to gravity on the Earth can be calculated by substituting the mass and radii of the Earth into the above equation and hence g= 9.81 m s-2. … What is acceleration due to gravity […]

Which blood type is most intelligent?

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 […]

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