A.) i.) Mass of Proton is slightly lower than the neutron and electrons are too lighter as compared to them.
ii.) Proton has positive charge, Electron with negative, and neutrons does not have any charge.
iii.) Proton and Neutron resides under the nucleus so known as "Nucleons" whereas electrons revolve around the nucleus.
B.) Protons and Neutrons determine the atomic mass of an atom, and protons and electrons determine the charge upon it. They are the basic properties and many chemical predictions could be made by this information.
Hope this helps!
The temperature to which it must be heated in order to fit the shaft is 73.33 ⁰C.
<h3>
Linear expansivity </h3>
The temperature to which it must be heated in order to fit the shaft is calculated as follows;

where;
- ΔT is change in temperature
- ΔL is change in length = 50.04 mm - 50 mm = 0.04 mm
- α is coefficient of linear expansion
- L is original length
ΔT = (0.04)/(50 x 15 x 10⁻⁶)
ΔT = 53.3 ⁰C
<h3>Final temperature</h3>
T₂ - T₁ = ΔT
T₂ = ΔT + T₁
where;
- T₂ is final temperature
- T₁ is initial temperature
T₂ = 53.3 + 20
T₂ = 73.33 ⁰C
Learn more about linear expansivity here: brainly.com/question/14325928
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(AB) & (CD)
Most machines are fueled by gasoline and electricity
Vf = vi + at
0m/s = 40m/s + a(0.025s)
a = -1600m/s^2
Fnet = ma
Fnet = (0.10kg)(-1600m/s^2)
Fnet = -160 N
hope that helps
True. You're suppose to answer true or false, right?