d efficiency of a machine is 75percent .if did machine raises a load of 150kg through a vertical. height of 20cm, cap d workdone by d labourers using d machine (take g=10m/s^)​

Amagnetic field "does not" interact with stationary electric charges. so, a.hope my answer you : )

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.

F  you double the  force, you double the acceleration, but  if  you double the  mass, you velocity. all bodies accelerate at the  same  rate regardless of size or  mass.

Ibelieve the answer is arteries