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Look up ecliptic, thats what you or another person misspelled
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThe Sun's apparent path along the Celestial Sphere
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How far is the star eliptic from earth?
I don't think there is such a star. If you mean the ecliptic, that's not a star - it is the plane of Earth's orbit.
Is the apparent annual path of the sun upon the celestial sphere called the eliptic?
Sort of. To be precise, the Ecliptic is the PLANE that goes through this path.
What are the two kinds of geometry?
euclidean Geometry where the parallel line postulate exists. and the is also eliptic geometry where the parallel line postulate does not exist.
Is europa inhabitable?
Right now, Europa has a thick layer of ice in which the tremendous chill will kill you. However Europa has an eliptic orbit so it will melt the ice and will be inhabitable.
What is some of the earth's seasons dealing with the tilt axis?
well, the tilt axis is around 23.5 degrees to the plane of the eliptic..., and there are four seasons. spring, summer, fall, and winter. besides that, i can't remember what happens when the earth's tilt does change., ice age and something else(the warm up time)
What makes an orbit elliptical?
The Earth orbits the Sun in 365.24 days.
At what two celestial locations do the celestial equator and eliptic coincide?
They're both imaginary, and they're parallel.How to explain their relationship . . .Imagine the earth's equator ... the circular line drawn around the earth's fat middle, exactly half-waybetween the North and South Poles. Now imagine that the equator starts to get bigger. It's still lined upwith the same line on the earth, but its diameter is growing, and it loses contact with the surface, and keepsgrowing, until it's over everybody's head. Now ships are sailing under it on their way north or south, andit still keeps growing, like an enormous hula hoop (does anybody still know what those are?).After a few hours, the equator gets so big that we can't really tell any more that it's only a few hundred milesout there. Now it looks like it's a line on the solid surface of the sky ... the same surface that the sun, moon,and stars are all painted on. Everything drawn on that surface looks like it's the same distance above theearth ... the surface looks like the inside of a big globe. And it has that new line all the way around it, exactlyabove the earth's equator at every point, but up in the sky. That's the celestial equator.Another way to visualize the celestial equator ... maybe not a lot better than the first way, but here it is anyway:Picture a gigantic knife, big enough to come along and cut the whole earth in half.If it's big enough and comes in exactly right, it can cut the earth exactly on the equator, so you separate the bottomhalf from the top half. Those are the north and south "hemispheres". Now, each half of the earth can sit flat on a table,and the outside of the circle that it makes on the table is the line that used to be the equator.OK ? Good.Now if you will, picture an even BIGGER knife, one that makes the first one look like a boy scout's pocket knife.This one is truly ginormous, almost too big to imagine. It can slice stars, solar systems, galaxies ! We're going toslice the earth in half again with this one, and it has to be a clean cut. So we back way off almost to infinity, andcarefully line up our shot, so that we won't have to make any adjustments on the way in. When we're perfectlylined up, we make our move. We keep our knife flat, come in smooth and steady from infinity, hit the equatorexactly, and slice precisely between the hemispheres. Then we follow through, and keep going off to infinityon the other side, holding the knife flat all the way.We have not only cut the earth in half exactly along the equator. This time we have also cut the wholecelestial sphere in half, on a line exactly parallel to the earth's equator. That line is (was) the celestial equator.
Why do heavier objects fall faster?
Objects do fall at the same rate, regardless of mass, in a vacuum. In air, wind resistance affects the NET of the forces accelerating the object. The heavier object WILL fall faster in air because the wind resistance, although the same between the two objects, represents a larger percentage of the forces acting on the lighter object. The heavier object will fall faster.That is incorrect.Weight has nothing to do with how fast things fall, only wind resistance. Take two 16 ounce soda bottles, open one drink eight ounces. The unopened bottle is twice as heavy as the opened bottle. Close the bottle you just drank half of and drop them at the same time from a tall building, they will hit the ground at the same time. That is because gravity is a constant and the velocity of any falling object is 9.8 meters per second/per second.Acceleration is the same for all objects at 9.8m/sec/sec.Acceleration due to gravity near the earth's surface is the same for all objects regardless of their mass.I took a 20lb (9.07kg) heavy exercise ball (aka medicine ball or strength training ball), and a soccer ball (which weighs 16 ounces aka 1 pound or 0.45kg). I dropped them both simultaneously, they both hit the ground at the same time, even though the medicine ball weighed 20 times as much as the soccer ball. I am not sure what you would like explained. as I can tell you that your example of 1% full and 100% full is false. 1/4, 1/2 full or completely full, it makes no difference. Your experiment must have been flawed, as it is impossible for them to fall at different rates. Here's the science behind it.Every planetary body (including the Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. Assuming a spherically symmetrical planet, the strength of this field at any given point is proportional to the planetary body's mass and inversely proportional to the square of the distance from the center of the body.The strength of the gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g, is expressed below as the standard average. According to the Bureau International de Poids et Mesures, International Systems of Units (SI), the Earth's standard acceleration due to gravity is:g = 9.80665 m/s2 = 32.1740 ft/s2).This means that, ignoring air resistance, an object falling freely near the Earth's surface increases its velocity by 9.80665 m/s (32.1740 ft/s or 22 mph) for each second of its descent. Thus, an object starting from rest will attain a velocity of 9.80665 m/s (32.1740 ft/s) after one second, approximately 19.62 m/s (64.4 ft/s) after two seconds, and so on, adding 9.80665 m/s (32.1740 ft/s) to each resulting velocity.Also, again ignoring air resistance, any and all objects, when dropped from the same height, will hit the ground at the same time. So two objects with the same aerodynamic values (aka air resitance) will hit the ground at the same time. That includes our coke bottles and the soccer ball and exercise ball.A set ofdynamical equations describe the resultant trajectories when objects move owing to a constant gravitational force under normal Earth-bound conditions. For example, Newton's law of universal gravitation simplifies to F = mg, where m is the mass of the body.Near the surface of the Earth, use g = 9.8 m/s² (meters per second squared; which might be thought of as "meters per second, per second", or 32 ft/s² as "feet per second per second"), approximately. For other planets, multiply g by the appropriate scaling factor. It is essential to use a coherent set of units for g, d, t and v. Assuming SI units, g is measured in meters per second squared, so dmust be measured in meters, t in seconds and v in meters per second.In all cases, the body is assumed to start from rest. Generally, in Earth's atmosphere, this means all results below will be quite inaccurate after only 5 seconds of fall (at which time an object's velocity will be a little less than the vacuum value of 49 m/s (9.8 m/s² × 5 s), due to air resistance). When a body is travelling through any atmosphere other than a perfect vacuum it will encounter a drag force induced by air resistance, this drag force increases with velocity. The object will reach a state where the drag force equals the gravitational force at this point the acceleration of the object becomes 0, the object now falls at a constant velocity. This state is called the terminal velocity.The drag force is dependant on the density of the atmosphere, the coefficient of drag for the object, the velocity of the object (instantaneous) and the area presented to the airflow.This equation occurs in many applications of basic physics.Distance travelled by an object falling for time : Time taken for an object to fall distance : Instantaneous velocity of a falling object after elapsed time : Instantaneous velocity of a falling object that has travelled distance : Average velocity of an object that has been falling for time (averaged over time): Average velocity of a falling object that has travelled distance (averaged over time): Instantaneous velocity of a falling object that has travelled distance on a planet with mass , with the combined radius of the planet and altitude of the falling object being , this equation is used for larger radii where is smaller than standard at the surface of Earth, but assumes a small distance of fall, so the change in is small and relatively constant:Instantaneous velocity of a falling object that has travelled distance on a planet with mass and radius (used for large fall distances where can change significantly):Example: the first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 12 = 4.9 meters. After two seconds it will have fallen 1/2 × 9.8 × 22 = 19.6 meters; and so on.We can see how the second to last, and the last equation change as the distance increases. If an object were to fall 10,000 meters to Earth, the results of both equations differ by only 0.08%. However, if the distance increases to that of geocynchronous orbit, which is 42,164 km, the difference changes to being almost 64%. At high values, the results of the second to last equation become grossly inaccurate.For astronomical bodies other than Earth, and for short distances of fall at other than "ground" level, gin the above equations may be replaced by G(M+m)/r² where G is the gravitational constant, M is the mass of the astronomical body, m is the mass of the falling body, and r is the radius from the falling object to the center of the body.Removing the simplifying assumption of uniform gravitational acceleration provides more accurate results. We find from the formula for radial eliptic trajectories:The time t taken for an object to fall from a height r to a height x, measured from the centers of the two bodies, is given by:where is the sum of the standard gravitational parameters of the two bodies. This equation should be used whenever there is a significant difference in the gravitational acceleration during the fall.Galileo Galilei (1564 -- 1642) was an Italian physicist , astronomer, astrologer, and philosopher closely associated with the scientific revolution. One of his most famous experiments was his demonstration from the Leaning Tower of Pisa.In the late 16th century, it was generally believed heavier objects would fall faster than lighter objects; Galileo thought differently. He hypothesized that two objects would fall at the same rate regardless of their mass. Legend has it that in 1590 he climbed the Leaning Tower of Pisa and dropped several large objects from the top. The objects did reach the ground at very similar times and Galileo concluded if you removed air resistance, they would reach the ground at exactly the same time.
What English words come from greek words?
There are too many of them to be listed here.A group of them is all English words spelled with ph, instead of f.See: philosophy, photography, catastrophe, telephone, phrase, phase, epiphanyAnother category, is all the words ending in -on and having an irregular plural of -a. Example: phenomenon, phenomenaA third category, is all the sciences ending in -y: biology, geography, astronomy, trigonometry. (Notice that algebradoes not fit - it derives from the Arabic.)
