2 articles trouvés pour ce sujet.
 |
|
|
|
|
|
|
|
|
How many ball bearings can you make from a cone? |
2009-03-14 |
|
Vatsal pose la question :
there is a sum in my maths book which states the following:
how many ball bearings of diameter 2.5 cm. can you get by
melting a solid metalic cone of radi. 20cm and a Hight of 5 meters?
how do i do this please tell me even the minute things like cancellatoins and where to
use = , ; or any such thing because Im a bit weak in maths
Harley Weston lui répond. |
|
|
|
|
|
|
Ball bearings in an oil can |
2007-12-03 |
|
Lisa pose la question :
One hundred ball bearings with radius 5 mm are dropped into a cylindrical can, which is half full of oil.
The height of the cylinder is 20 cm and the radius is 8 cm.
By how much does the level of the oil rise?
Stephen La Rocque lui répond. |
|
|
