Emperor Sam

This page lists questions and answers that were posted by visitors named Emperor Sam.

Questions

The following questions were asked by visitors named Emperor Sam.

A pulley system having 5 pulleys is used to raise a 450N load. find the mechanical advatange and hence the effort if the efficiency is 75%

Answers

The following answers were posted by visitors named Emperor Sam.

introducing of the buffalos affect food chain because food chain starts from green plants. but the bufallo has reduce greater green plant. dofood chain in the ecosystem will reduced