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What is the name of the duration relating to the rise and fall of the number of sunspots on the Sun?
Wiki User
∙ 7y ago
It is often referred t as The Sunspot Cycle - period of about 11 years.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThe solar cycle.
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How many times a year do you have days in which the day and night are of equal duration?
Twice, at the Summer and Winter Solstaces.
At the time of the Fall equinox the number of hours of daylight in New york City is generally?
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The first indication that the sun rotates?
We know it rotates about its axis because we experience day and night - phases through which we face the sun, then turn/rotate away from it.We know it rotates around the Sun because if it didn't, we'd fall directly towards it.We know the Earth rotates around the Sun and not the other way around because of inertia and angular momentum. Since the Sun is much larger than us, and therefore has hugely more inertia than us, we know that it must be sitting relatively still, for if it were to rotate around us, our gravitational pull would be insufficient to hold it in orbit. We must therefore be rotating around the Sun as it pulls us in to maintain our orbit around it.It is just as legitimate to state that the Sun rotates around the Earth at a speed of one revolution per 24 hours, which uses the Earth as a point of reference, assuming it is fixed and stationary in space with the rest of the universe moving around it.
What is the longest period of time a sunspot might last?
Answer"If you are talking about the time from a sun spot minimum, through the next maximum, back to the next minimum, it's 22 years roughly. Individual sun spots can come and go in a few days or last for weeks".Not true. The average sunspot cycle is about 10.7 years in length, often rounded up to 11 years. From the minimum to the maximum is an average of about 4.8 years, and from the max down to the next minimum it is about 5.9 years. They typically rise quicker than they fall.A progression from minimum to maximum to minimum is a single sunspot cycle. Two sunspot cycles might run 19-23 years in length total, not one.
What is the equation relating temperature heat and specific heat capacity to each other?
H = m s t H - heat energy in joule m- mass of the body in kg s - specific heat capacity J / kg / K t - the temperature difference may be a rise or fall in K
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