# Yahoo Web Search

1. ### How do you caluclate the length of the 40 degree paralel of latitude, to the nearest 10 km ?

...deg). Its circumference is 2pi r cos(40). Using r = 6,378.137 km ( Wikipedia ) gives: 2 pi 6378.137 cos(40) = 30699.24 km = 30700 km to nearest 10km...

1 Answers · Science & Mathematics · 01/05/2008

2. ### is 114 inhabitants for each km ² crowded i dont know this system for mesurment can some one help me with this

... is the 87th most densly populated country with 114 people / km ^3 http://en. wikipedia .org/wiki/List_of_countries_by_population_density The world population...

2 Answers · Science & Mathematics · 12/11/2006

3. ### 353 km /s = ________ cm/s?

... with dimensional analysis 353 km /s x 1000 m/ km x 100 cm/m = 35 300 000 cm/s 1401 g/ L x 1000 ...1000000000000000 = e-15 a (atto) = /1000000000000000000 = e-18 http://en. wikipedia .org/wiki/Metric_prefixes

3 Answers · Science & Mathematics · 11/09/2010

4. ### The horizon is 110 km from the top of a lighthouse. Estimate the height of the lighthouse.?

...2 + s^2) h = - R +/- √(6350^2 + 110^2) h = - 6350 +/- 6350,9526 km h = 0,9526 km = 952,6 m What kind of lighthouse is this? See also: http://en. wikipedia .org/wiki/File:How_far_away_is_the_horizon.png http://en. wikipedia ...

1 Answers · Science & Mathematics · 19/06/2010

5. ### The diameter of some celestial body is 2680 km . What is the volume of this body? in m^3?

... Now you can use the same equation for the Earth, or go to wikipedia /earth. Remember the nine zeros to change Km to m cubic. This is your homework... Do it. ☺...

3 Answers · Science & Mathematics · 26/08/2007

6. ### word problem about right triangles?

Wikipedia gives distance (for knots) as 1.852 km /hr. 3 hr(1.852 km /hr)(15 knots) = 83.34 km 3 hr(1.852 km /hr)(24 ...

2 Answers · Science & Mathematics · 12/04/2009

7. ### Metrics (cm and km ) help me please, and thank you?

...1/100 k = 1000 so 27 cm = 27/100 meter or 0.27 meter 1 km = 1000 meter so now we can just divide the two 1000 meter / 0.27...1000000000000 = e-12 f (femto) = /1000000000000000 = e-15 http://en. wikipedia .org/wiki/Metric_prefixes

3 Answers · Science & Mathematics · 07/12/2009

8. ### Any one can solve this math problem? ?

... than it should be) The average radius of the earth is 6371 km (according to Wikipedia ) r = 6371 * 10^3 m = 6.371 * 10^6 meters Now, if we draw a cross...

4 Answers · Science & Mathematics · 23/03/2012

9. ### how many square meter in Philippines?

300,000 km ^2. yes the other one on top is right. more info over here: http://en. wikipedia .org/wiki/Philippines

2 Answers · Science & Mathematics · 18/07/2008

10. ### Math help = earth geometry?

Mean Earth radius = R = 6371 km Radius of ±30⁰ latitude circles...11.21 hours Time ≈ 11h 12m 44s http://en. wikipedia .org/wiki/Earth_radius#Mean_radii http...

1 Answers · Science & Mathematics · 04/09/2009

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