Help, please!! If an object with a mass of 4.2 kg accelerates at 2.6 m/s2, what was the force exerted? a.4.2n

b.10.92n

c.10.92kg

d.20n

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!