402 Answered Questions for the topic astronomy

Astronomy

04/14/14

WHAT IS THE SOURCE OF THE MATERIAL THAT NOW MAKES UP THE SUN AND THE REST OF THE SOLAR SYSTEM .
CAN SOMEONE PLEASE HELP EXPLAIN THE ANSWER TO THIS QUESTION . 
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Astronomy

03/26/14

Compare the angular resolution of the Hubble Space Telescope (Aperture 2.4 meters)
WITH THAT OF  A TYPICAL AMATEUR TELESCOPE  (APERTURE 20CM)
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Astronomy

03/26/14

mANY AMATEUR ASTRONOMERS START OUT WITH A 4 INCH (APERTURE) TELESCOPE AND THEN GRADUATE TO A 16 INCH TELESCOPE . BY WHAT
FACTOR  DOES THE LIGHT - GATHERING POWER ( WHICH GOES LIKE THE AREA) OF THE TELESCOPE INCREASE ?
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Astronomy

03/26/14

The advantage of an interferometer is that .
(a)  the resolution  is dramatically increased .  ( b) the focal length is dramatically increased . ( c)  the light - gathering power is dramatically increased . ( d) diffraction effects are... more
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Astronomy Physics

03/26/14

Two balls, one of gold with a mass of 100kg and one of wood with a mass of 1kg , are suspended 1 meter apart . What is the attractive force , in newtons , of
(a) the gold ball acting on the wooden ball ?  (b)the wooden ball acting on the gold ball .
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Astronomy

03/22/14

ON THE VERNAL AUTUMNAL EQUINOXES WHAT HAPPENS
EXPLANATION AS TO EXACTLY WHAT HAPPENS AROUND THAT TIME
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Expert Answers •2
Astronomy

03/22/14

THE TILT OF THE EARTHS AXIS CAUSES THE SEASONS BECAUSE
WHAT IS THE CORRECT ANSWER TO THIS QUESTION 
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Astronomy

03/22/14

The speed of a planet in its orbit varies in its journey around the sun .
(a) at what point in its orbit is the planet moving the fastest . (b) at what point is it moving the slowest .
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Astronomy

03/22/14

An astronaut standing on earth can easily lift a wrench having a mass of 1kg , but not a scientific instrument mass of 100 kg.
in the international space station she is quite capable of manipulating both , although the scientific instrument responds much more slowly than the wrench . explain why
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Astronomy

03/22/14

suppose that you are pushing a small refridgerator of mass 50 kg on wheels . You push with force of 100N.
(A) What is the refrigerator acceleration . (B) Assume the refigerator starts at rest . How long will the refrigerator accelerate at this rate before it gets away from you , that is moving faster... more
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Astronomy

02/16/14

IF SOMEONES HEIGHT IS 5FT 6 INCHES WHAT WOULD BE THEIR ESTIMATED HEIGHT IN METERS .
PLEASE HELP WITH THE CALCULATIONS.
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Astronomy

02/16/14

A text book in 1945 stated that it takes 800,000 years for light to reach us from Andromeda Galaxy , BUT IT IS NORMALLY SAID IN TEXTBOOKS THAT IT TAKES 2, 500,
YEARS, what DOES THIS SAY ABOUT A SCIENTIFIC FACT AND HOW KNOWLEDGE CHANGES WITH TIME . CAN SOMEONE PLEASE EXPLAIN THIS FOR ME
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Astronomy

02/16/14

is it true or false that once a theory is proven in science ,scientists stop testing it .
could someone help me decide whether the answer is true or false .
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Astronomy

02/16/14

if a light year is the distance that light travels in one year , find the number of miles , meters and kilometers in one light year .
Can a tutor please help me answer this question showing all the possible calculations for this question need so as to me having a cleare idea on how to answer questions like these next time i come... more
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Astronomy

02/16/14

If the speed of light is 186, 000 miles per second . How many meters will light travel in one second ?
i need some to please help me show all the necessary calculations for this problem helping break it down as simple as possible so i can further clearly understand how to go about doing it. 
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Astronomy

02/10/14

CALCULATE THE NUMBER OF SECONDS IN ONE YEAR
CAN SOMEONE PLEASE HELP ME CALCULATE THE ANSWER TO THAT QUESTION SHOWING ALL THE POSSIBLE CALCULATIONS AND WORKINGS FOR THE QUESTION
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Expert Answers •4
Astronomy

02/10/14

FIND THE NUMBER OF METERS IN 1.00 MILE
I NEED HELP CALCULATING THE ANSWER FOR THIS QUESTION SHOWING ALL THE POSSIBLE METHODS AND WORKINGS FOR THIS PROBLEM ABOVE .
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Expert Answers •2
Astronomy

02/10/14

how many centimeters in a 100 yards
need help to calculate the answer for this question by showing all the necessary calculations involved for this problem listed
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Expert Answers •4
Astronomy

01/24/14

About how many times larger is the diameter of the Milky Way Galaxy than the diameter of Saturn’s rings? (Data: Saturn’s rings are about 270,000 km in diameter;
About how many times larger is the diameter of the Milky Way Galaxy than the diameter of Saturn’s rings? (Data: Saturn’s rings are about 270,000 km in diameter; the Milky Way is 100,000 light-years... more
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Astronomy

10/05/13

solution to what type of a planet would have and average temperature of 40 degrees, a year on the planet lasts 423 earth days
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Astronomy

05/22/13

Free Astronomy ebooks?
Can someone please provide me a link for free astronomy textbooks online for high school students that has lots of practice problems? Unfortunately my school doesn't have them.
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Expert Answers •1
Astronomy

04/28/13

Why are there not more active galaxies in our area?
Studying the Hubble's Galactic Classification Scheme 
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Astronomy Science Physics Space

03/26/13

Can anyone help me with these science questions on Astronomy: Earth and Space Systems/ The Solar System?
Most of the frozen ice in a comet's ______ vaporizes after the comet's many trips around the sun. The Sun produces energy by fusing hydrogen atoms, into _____ atoms in its core. Planets were... more
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Astronomy Science Space

01/16/13

What are quasars?
i dont really get what they are, its not making sense that one exists
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Astronomy Physics

01/15/13

What is a black hole?
I'm confused on what a black hole is and how they work.
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Expert Answers •6

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