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2 years ago

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A scientist discovered an elementary particle paired with another particle. It has a positive charge equal to two–thirds of the

charge of an electron. How should the scientist categorize the particle?
A.) Boson

B.) Lepton

C.) Photon

D.) Quark

1 answer:

julia-pushkina [17]2 years ago

6 0

W boson has +1e or - 1e charge, Z boson has 0 charge.

Leptons have +1e, -1e or 0 charge.

Photons have 0 charge.

Only quarks have a charge of +2/3e or -1/3e of an electron charge.

To be exact, only up-type quarks (Up, Down and Top quarks) have a +2/3e or two thirds of an electron charge.

So the correct answer is D) Quark.

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The vertical component of velocity is

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$-1.23 = v_y(4.5)-\frac{1}{2} (9.8)(4.5)^2$

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The direction of the velocity will be given by the tangent of the components, then

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