Question
When does a "blue moon" occur in the lunar
calendar?Solution
Most of us know Blue Moons as the second full moon of a single calendar month. These happen a lot, too. The "blue moon" reference is applied to the third full moon in a season with four full moons, thus correcting the timing of the last month of a season that would have otherwise been expected too early. This happens every two to three years (seven times in the Metonic cycle of 19 years).
The intensity of any wave is proportional to which quantity?
Two blocks of masses 2 kg and 4 kg are connected by a light spring (k = 300 N/m) and placed on a smooth horizontal surface. The spring is compressed by ...
Which quantity has the same dimensional formula as impulse?
Which instrument is primarily used to measure the relative density of liquids by utilizing the principle of buoyancy?
Which law is violated if two bodies in mutual gravitational interaction exert unequal forces on each other?
What is the wavelength of visible spectrum?
Which graph represents uniform motion?
A projectile is fired at an angle θ and reaches maximum height
H and range R. The angle between velocity and acceleration at the highest poin...
Which lens is used to correct myopia (shortsightedness)? Â
In a diatomic gas at ordinary temperatures, how many degrees of freedom contribute to internal energy?
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