850 J C С
860 J
Un objeto es arrastrado 80 cm sobre una superfi
aplicarle una fuerza de 40 N. Determine el trabaj
se ejerce.
Trabajo:
W = F xd​

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

multiplying and dividing the two decimals and the eqations by the same number of the overalls