Answer:
Quark
Explanation:
In the past the proton,neutron and electron were believed to be indivisible. Quarks were later discovered to be particles that make up the proton and neutron. Quarks are known as fast moving points of energy and are usually joined to one another through gluons. Neutron has two down quarks and one up quark while proton has two up quarks and one down quark.
I can never remember whether the '100 T' is the gross weight of the ship or the weight of the cargo it can carry. Let's say it's the gross loaded weight. / / / A 100 ton floating ship displaces 100 tons of water, and the bbuoyant force on it is 100 tons.
The net force is the difference between upwards force and downwards force, so 53.7N-40N=13.7N=∑F. ∑F=ma, m=5.1kg, so a=13.7N/5.1kg.
Data:
Ep = ? (Joule)
if: F = k.x → F = 10 N
x (displacement) = 0.20 m
Formula:
![Ep = \frac{F*x}{2}](https://tex.z-dn.net/?f=Ep%20%3D%20%20%5Cfrac%7BF%2Ax%7D%7B2%7D%20)
Solving:
![Ep = \frac{F*x}{2}](https://tex.z-dn.net/?f=Ep%20%3D%20%5Cfrac%7BF%2Ax%7D%7B2%7D%20)
![Ep = \frac{10*0.20}{2}](https://tex.z-dn.net/?f=Ep%20%3D%20%20%5Cfrac%7B10%2A0.20%7D%7B2%7D%20)
![Ep = \frac{2}{2}](https://tex.z-dn.net/?f=Ep%20%3D%20%20%5Cfrac%7B2%7D%7B2%7D%20)
B because it is the only answer I go with