anoymous student

This page lists questions and answers that were posted by visitors named anoymous student.

Questions

The following questions were asked by visitors named anoymous student.

Answers

The following answers were posted by visitors named anoymous student.

the answer to part a) is zero. I don't know why right now though. and the answer to part b) would be 45.1 if it was a 4.50kg brick. I also don't remember how I got that answer.