Interested to Buy Any Domain ? << Click Here >> for more details...
Why is it more efficient for a labourer to raise bricks up
to a brick layer by the use of a rope and pully than by
carrying them up a ladder ?
- 1 Answers
- 4127 Views
- I also Faced
- E-Mail Answers
Answer Posted / guest
Because the labourer has his own weight to raise as well as
that of the bricks when ascending a ladder, while with the
rope and pully only the load is raised and the energy is not
wasted.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
How are ph and pka related?
Why is acetic acid added?
How is temporary hardness be removed?
what is the indicator used?
Why is the color of the indicator drop remains the same at the end point?
State beer-lambert’s law.
What is modern definition(iupac) of ph?
What is the purpose of adding urea?
What are the uses of glacial acetic acid?
What is dextro-rotatory and levo-rotatory?
What is the reaction that occurring between fas and potassium dichromate?
Fresh form of water is obtained from?
What is iron ore consists of?
Write the chemical formula for epsom salts?
What is meant by ph of a solution?
