A train travels at a certain speed of a distance of 63km and then travel a distance of 72km at an average speed 6km/h mass than its original speed it takes 3 hours to complete total jaurney what is the original average
The diameter of the lower and upper and of a lucket in the form a frusterm of a cone are 10cm and 30cm respectively if it's higth is 24cm find
A 20m deep well with diameter 7m is dug and the earth from digging is evently spread out to form a platform 22m by 14 m. Find the height of the platform.
point c divides the line segment joining the points a(4,2) b(4,-7) such that ac/ab =1/3 if c lies on the line 3x-4y+k=0 find k?
derive the formula for the pressure exerted by an ideal gas on the walls of the container, in terms of th eroot mean square velocity.