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Why three phases is used in polyphase system instead of 6 12 or more number of phases?
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What phases of venus are predicted by the ptolemaic system?
New and crescent phases only. The crescent phase can not quite reach the stage where we see half a hemisphere of Venus illuminated.
Why is there discrepancy in the Moon's complete phases and the Moon's revolution around the earth?
Because the earth/moon system also moves. Its position, in relation to the sun, changes over the month.
The moon has phases too Why doesn't that make us think the moon revolves around the sun too rather than around Earth?
To see all the phases of Venus is impossible in the Earth-centred model of the Solar System. The case of the Moon is different. Simple geometry shows how you can see all the phases if it revolves around the Earth. If the Moon's phases were caused by it orbiting the Sun, then the Moon would have to be millions of miles from Earth. We know the distance to the Moon very accurately and it's obviously orbiting the Earth. But, of course, the Moon does go round the Sun too, along with Earth, during the year. I hope that's clear.
Why does the moon reapeat phases every 29.5 days when even though it orbits Earth every 27.3 days?
This difference of 2.2 days is due to the orbiting of the Earth-moon system around the sun :)
What is the number of planets in the solar system?
There are 8 planets in the solar system
In a modern industrial plant the most likely polyphase power system in use is a A. one-phase system. C. three-phase system. B. two-phase system. D. four-phase system.?
A "three-phase system" is a polyphase system having three phases. The term "polyphase system" just means a system having multiple phases. If it is used by itself, "a polyphase system" doesn't mean "a three-phase system".
Another name for y -or wye - connected system of a polyphase power is?
It is not true that another name for the "Y" or "wye-connected" system of polyphase power is the "delta" system. It's called the "star" system.
What is the difference between the Mayan number system and our current number system?
Their number system was based on 20 instead of 10. Their number system was based on three characters instead of 10 characters.
What is phase rule?
The state phase rule is:Number of freedom degrees in a system at equilibrium = Number of components in the system - Number of phases + 2
What is state phase rule?
The state phase rule is:Number of freedom degrees in a system at equilibrium = Number of components in the system - Number of phases + 2
What important system consisting of diodes in converting ac to dc?
Halfwave or fullwave or polyphase AC to DC?
What are the advantages of three phase to two phase electric power distribution systems?
Polyphase systems are used because they allow the efficient transmission of electric power, in terms of power transmitted per kilogram of wire. Polyphase systems with more than three phases are very uncommon.
Uml diagrams railway reservation system for all phases?
uml diagrams railway reservation system for all phases
What did Nikola Tesla win the John Scott ward in 1934 for?
In 1934, the city of Philadelphia awarded him the John Scott medal for his polyphase power system.
What are two phases of the digestive system?
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Do the observed phases of Venus support the heliocentric system?
The phases of Venus are well supported by the heliocentric system, but they are also supported very well by the previous geocentric system. All you need for Venus to have phases is that Venus should pass between Earth and Sun. That happens in both the heliocentric system and the geocentric system.
Do The observed phases of Venus supported the heliocentric system?
The phases of Venus are well supported by the heliocentric system, but they are also supported very well by the previous geocentric system. All you need for Venus to have phases is that Venus should pass between Earth and Sun. That happens in both the heliocentric system and the geocentric system.
