3 years ago

I need these ASAP 20 POINTS!!

1 answer:

4 0

Protons give a positive charge and the amount of the protons is what the atomic number is, which is what the atom is such as iron, irons atomic number is 26 this means it has 26 protons, if there were to be two more protons added to it the whole atom would change into a COMPLETELY different element which would be nickel with the atomic number of 28. Neutrons add mass to the atom and electrons balance the amount of negative and positive charges

Neutrons keep the atom stable

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A 4.40-m-long, 500 kg steel uniform beam extends horizontally from the point where it has been bolted to the framework of a new

icang [17]

Answer:

Torque=13798.4 N.m

Explanation:

Given data

Mass of beam m₁=500 kg

Mass of the person m₂=70 kg

length of steel r₁=4.40m

center of gravity of the beam is at r₂=r₁/2 =4.40/2 = 2.20m

To find