In the staircase shown here the height of the first step is 10 centimetres and the height of each step after it is 17.5 centimetres. How high from the ground would be some one climbing up, after each step?

In the staircase shown here the height of the first step is 10 centimetres and the height of each step after it is 17.5 centimetres. Write these numbers as a sequence.

The base radius and height of a metal. cylinder are 4 centimetres and 10 centimetres. If it is melted and recast. into spheres of radius 2 centimetres each, how many spheres can be made?

How woụld you prepare 4 - methoxy phenol from bromobenzene in not more than 5 steps? State clearly the reagents used in each step and show the structures of the intermediate, compounds in your synthetic scheme?