During an investigation into muscle strength, a group of students planned to compare their bicep muscles. Each student planned to lift a variety of masses, until they found the largest mass that they could lift. The masses were 5, 10, 15, 20 and 25 kg. The students would then plot a graph of their results. a) Suggest how the students could improve the reliability of the investigation.

b) Suggest how the students could improve the accuracy of the investigation.

c) The teacher told the students that their investigation was too dangerous. Suggest why.

B)?

Explanation:

we Know it’s not c) so its between a) and b) so I would go with b)

- plz mark brainliest if I got it correct:)

answer; i believe the correct answer is (replication is not conservative);

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.