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Natasha_Volkova [10]
3 years ago
11

Match the parts of an atom to the colors in this picture:

Physics
2 answers:
Mars2501 [29]3 years ago
5 0
Yellow - Electrons
Red - Protons
Green - Neutrons
Svetradugi [14.3K]3 years ago
5 0

Answer:

The yellow circles are electrons.

The green circles neutrons

The red circles are protons.

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Answer:

U_k = 0.113

Explanation:

using the law of the conservation of energy:

E_i -E_f=W_f

\frac{1}{2}Kx^2=NU_kd

where K is the spring constant, x is the spring compression, N is the normal force of the block, U_k is the coefficiet of kinetic friction and d is the distance.

Also, by laws of newton, N is calculated by:

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N = 3.35 kg * 9.81 m/s

N = 32.8635

So, Replacing values on the first equation, we get:

\frac{1}{2}(138)(0.123)^2= (32.8635)U_k(0.281m)

solving for U_k:

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