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3 years ago

Protons are made up of _ up quark(s) and _ down quark(s).

Physics

2 answers:

SashulF [63]3 years ago

5 0

Choice c it's confusing to understand but it's c

liraira [26]3 years ago

3 0

The correct answer is C. 2, 1

Explanation:

In physics, protons along with neutrons and electrons are the particles that compose atoms which are the basic unit of matter. Protons different neutron have a positive charge and along with neutrons create the nucleus of the atoms. In terms of composition, protons are made up of three quarks (elementary particles) that are divided into two up quarks and one down quark that are two types of quarks with low mass. According to this, it can be concluded protons are made up fo 2 up quarks and 1 down quark.

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Gases have two specific heat values .....?

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A At one constant temp and another at a constant pressure

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3 years ago

Write equations for both the electric and magnetic fields for an electromagnetic wave in the red part of the visible spectrum th

Strike441 [17]

Answer:

$E=3.5(8.98*10^{6}x-2.69*10^{15}t)$

$B=1.17*10^{-8}(8.98*10^{6}x-2.69*10^{15}t)$

Explanation:

The electric field equation of a electromagnetic wave is given by:

$E=E_{max}(kx-\omega t)$ (1)

E(max) is the maximun value of E, it means the amplitude of the wave.
k is the wave number
ω is the angular frequency

We know that the wave length is λ = 700 nm and the peak electric field magnitude of 3.5 V/m, this value is correspond a E(max).

By definition:

$k=\frac{2\pi}{\lambda}$

$k=8.98*10^{6} [rad/m]$

And the relation between λ and f is:

$c=\lambda f$

$f=\frac{c}{\lambda}$

$f=\frac{3*10^{8}}{700*10^{-9}}$

$f=4.28*10^{14}$

The angular frequency equation is:

$\omega=2\pi f$

$\omega=2\pi*4.28*10^{14}$

$\omega=2.69*10^{15} [rad/s]$

Therefore, the E equation, suing (1), will be:

$E=3.5(8.98*10^{6}x-2.69*10^{15}t)$ (2)

For the magnetic field we have the next equation:

$B=B_{max}(kx-\omega t)$ (3)

It is the same as E. Here we just need to find B(max).

We can use this equation:

$E_{max}=cB_{max}$

$B_{max}=\frac{E_{max}}{c}=\frac{3.5}{3*10^{8}}$

$B_{max}=1.17*10^{-8}T$

Putting this in (3), finally we will have:

$B=1.17*10^{-8}(8.98*10^{6}x-2.69*10^{15}t)$ (4)

I hope it helps you!

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3 years ago

Protons are made up of ___ up quark(s) and ___ down quark(s).

Protons are made up of _ up quark(s) and _ down quark(s).