How much time is a parsec? It is defined as 360×60×60/2π astronomical units (AU), which is equivalent to about 19.17 trillion miles, or about 3.262 light-years. The Star Wars parsec appears to be equivalent to the real-world measurement: The Essential Atlas says a parsec is 3.26 light-years. How many parsecs are in the universe? The […]
What are some examples of primary and secondary sources?
What are some examples of primary and secondary sources? Primary and secondary source examples Primary source Secondary source Letters and diaries written by a historical figure Biography of the historical figure Essay by a philosopher Textbook summarizing the philosopher’s ideas Photographs of a historical event Documentary about the historical event What are examples of sources? […]
What happens to current If voltage is doubled?
What happens to current If voltage is doubled? if you increase the voltage (or electrical pressure) in a circuit then the current (flow of electrons) will increase in direct proportion, eg if you double the voltage the current flow will double. What if both voltage and resistance are doubled? and if the voltage and the […]
Is gravity the same in a plane?
Is gravity the same in a plane? You are correct that the force of gravity is slightly less the further you get from the earth. Airlines typically cruise around 30,000 – 35,000 feet. The force of gravity on Everest is about 0.434% less than the standard 9.8N/kg. This means that one pound at Sea Level […]
How long does it take light to travel from the sun to Pluto?
How do kinetic energy heat and temperature affect each other?
How do kinetic energy heat and temperature affect each other? The thermal energy, or heat, of an object is obtained by adding up the kinetic energy of all the molecules within it. Temperature is the average kinetic energy of the molecules. Absolute zero is the temperature where molecular motion stops and is the lowest possible […]
Which lenses do professional photographers use?
Which lenses do professional photographers use? Five Lenses Every Portrait Photographer Should Have 85mm f/1.4. The absolute golden staple for serious portrait photographers must be the 85mm f/1.4 lens. 70-200mm f/2.8. Telephoto lenses sure do flatter subjects due to their perspectival compression, and that’s what makes this lens such a big hitter in the world […]
Is the brain a supercomputer?
Is the brain a supercomputer? Brains Are Very Different From Computers Although it is impossible to precisely calculate, it is postulated that the human brain operates at 1 exaFLOP, which is equivalent to a billion billion calculations per second. How powerful is a brain? It is so complex that it is capable of generating the […]
What are the 4 biological rhythms?
What are the 4 biological rhythms? There are four biological rhythms: circadian rhythms: the 24-hour cycle that includes physiological and behavioral rhythms like sleeping. diurnal rhythms: the circadian rhythm synced with day and night. ultradian rhythms: biological rhythms with a shorter period and higher frequency than circadian rhythms. What happens if your circadian rhythm is […]
How does frequency affect interference?
How does frequency affect interference? A higher frequency corresponds to a shorter wavelength. Waves of shorter wavelength spread out (diffract) less after passing through the slits, and the short wavelength leads to a smaller angle at which constructive interference (one wavelength path difference between the two waves) will occur. What is interference effect? Interference, in […]