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#76 2006-10-09 06:17:35

espeon
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Registered: 2006-02-05
Posts: 2,586

Re: 10 second questions

40. there are as many stars as there are in the universe(he never said u need an exact number now did he ^.^)


Presenting the Prinny dance.
Take this dood! Huh doood!!! HUH DOOOOD!?!? DOOD HUH!!!!!! DOOOOOOOOOOOOOOOOOOOOOOOOOD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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#77 2006-10-09 06:36:50

Patrick
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Registered: 2006-02-24
Posts: 1,005

Re: 10 second questions

Wow, can you really see through planets ?


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#78 2006-10-09 07:03:33

espeon
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Registered: 2006-02-05
Posts: 2,586

Re: 10 second questions

what does that have to do with anything?


Presenting the Prinny dance.
Take this dood! Huh doood!!! HUH DOOOOD!?!? DOOD HUH!!!!!! DOOOOOOOOOOOOOOOOOOOOOOOOOD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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#79 2006-10-09 17:53:19

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

espeon wrote:

40. there are as many stars as there are in the universe(he never said u need an exact number now did he ^.^)

That answer makes absolutely no sense.

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#80 2006-10-09 20:30:19

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

Hairy thing....estimated average 80,000. Could be anywhere between 60,000 and 80,000. Sometimes even 0 smile
Stars: Between 3,000 and 6,000. depending on visibilty etc.
mathsyperson is correct,  the formula is v+s=e+2,
Well done, mathsyperson!


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#81 2006-10-10 02:26:10

Toast
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Registered: 2006-10-08
Posts: 1,321

Re: 10 second questions

lol we are supposed to solve these in 10 seconds? x_x

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#82 2006-10-10 02:28:50

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

Yes. We are masterminds, so no one can stop us expanding in wisdom and brain fluid.

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#83 2006-10-10 15:51:33

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

43. What is the significance of the number 0.4343 approximately in Mathematics?

44. And what is the significance of the number 2.303 approximately?


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#84 2006-10-10 18:35:16

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

43. Multiply a natural logarithm by 0.4343 to convert it to a common logarithm
44. ln(10) is about 2.303

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#85 2006-10-10 20:48:22

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

Excellent, Devate`.
The two numbers are important to mathematicians.


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#86 2006-10-10 21:03:01

Devantè
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Posts: 6,400

Re: 10 second questions

Go me. smile

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#87 2006-10-12 04:01:26

ganesh
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Posts: 13,145

Re: 10 second questions

45. How many Watts is a Horsepower?

46. What is the significance of the number 6.023 x 10^23?


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#88 2006-10-12 04:14:26

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

45. 745.699872 watts
46. The most common use of exponents in science (hence the first half of the name) and the most important reason to get used to using exponents. In scientific notation numbers are represented as the product of a real number with only a single digit to the left of the decimal and the number 10 raised to an appropriate value. Thus: 602300000000000000000000 = 6.023 x 100000000000000000000000 There are 23 zeros to the left of the decimal in the right-most value. Thus: 100000000000000000000000 = 10^23 and 602300000000000000000000 = 6.023 x 10^23

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#89 2006-10-12 04:17:40

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

Regarding #46, I forgot to put approximately at the end of the question.
The number ought to be known both to mathematicans, and more importantly to scientists.


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#90 2006-10-12 04:21:06

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

Was #46 part-correct, though? smile

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#91 2006-10-12 04:23:24

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

To be fair, your answer has got nothing to do with the question. sad


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#92 2006-10-12 04:29:01

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

Aww. sad

Well, I do know that in the nineteenth century physicists measured the mass of one atom of hydrogen to be about 1/(6.023x10^23) grams.

Is that relevant? smile

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#93 2006-10-13 03:41:11

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

Oh yes, very well. 6.023x10^23 is Avogadro's Number.


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#94 2006-10-14 05:07:14

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

Also found this: http://gemini.tntech.edu/~tfurtsch/scihist/avogadro.htm

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#95 2006-10-14 18:21:26

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

47. What is the remainder when 1000 is divided by 7?

48. Roughly how many seconds is a day?

49. What's the difference between a billion in US and that in UK?

50. If the third angle of an isosceles triangle is 82° , what is the measure of the equal angles?


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#96 2006-10-14 18:58:10

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

47. 6
48. 1440x60 = 86400
49. In the US, a billon has 9 zeros. In the UK, however a billion consists of 12 zeros.
50. 98/2 = 49

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#97 2006-10-14 18:59:59

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

All your answers are correct.
Excellent, Devante'


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#98 2006-10-14 23:32:06

ganesh
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Registered: 2005-06-28
Posts: 13,145

Re: 10 second questions

51. Approximately how many degrees is a radian?

52. Is 768625 divisible by 11?

53. What is the slope of the line joining the points (11,7) and (21, 2)?


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#99 2006-10-14 23:39:55

Devantè
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Registered: 2006-07-14
Posts: 6,400

Re: 10 second questions

51. 1 Radian = 57.2957795 degrees
52. Yes
53. [Deleted Incorrect Answer]

Last edited by Devanté (2006-10-14 23:50:49)

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#100 2006-10-15 00:34:53

mathsyperson
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Registered: 2005-06-22
Posts: 4,900

Re: 10 second questions

52. Yes, because 7-6+8-6+2-5 = 0, which is divisible by 11 and so 768625 also is.

53. (7-2)/(11-21) = -0.5


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