A scientific journal article that is peer reviewed. This is because it is more likely not have factual information and sources to that information.
In a block and tackle, some friction in the pulleys will reduce the mechanical advantage of the machine. To include friction in a calculation of the mechanical advantage of a block and tackle, divide the weight of the object being lifted by the weight necessary to lift it.
Hope this helps
Density = mass/volume, so density=5.28g/2cm
Answer:
destroy
Explanation:
cuz if anyhow throw rubbish, it will affect/destroy the world environment
F=ma
f=4.5*9
40.5 N
hope this help
