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3 years ago

Protons and neutrons are composed of... A.molecules B.ions C.quarks D.electrons

Physics

2 answers:

astraxan [27]3 years ago

6 0

Protons and neutrons consists of quarks.

Answer: Option C

Explanation:

The “elementary particle and fundamental constituent of matter” is known as quark. Quarks mix up to form “composite particles called hadrons”. The stable are protons and neutrons, which are the “components of atomic nuclei”.

Atoms consists of two particles electrons and quarks. Quarks are composed of protons and neutrons. There are three quarks in each proton and neutron. Many varieties of quarks available.

Up quark and down quark are its types. There are “two up quark and one down quark” in the proton. There are “one up quark and two down quark” are there in the neutron.

evablogger [386]3 years ago

4 0

Protons and neutrons are composed of quarks

Answer:C ( quarks)

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Amber is a (a) metal (b) rubber (c) resin (d) sugar

zlopas [31]

Answer:

c. Resin.

Explanation:

Amber is a resin.

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2 years ago

Two electronics technicians are discussing conductors and insulators. Technician A says that conductors have more free electrons

vitfil [10]

Technician A is Correct.

You can see this when he says that conductors have more free electrons than insulators. This statement is True.

While Technician B says that, insulators have the lower resistance than conductors. This statement is False.

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3 years ago

Read 2 more answers

The motor on a helicopter turns at an angular speed of 6.2 x 102 revolutions per minute. (a) Express this angular speed in radia

arsen [322]

Answer:

64.93 rad/s
38.956 km

Explanation:

(a)

$\dfrac{6.2\cdot 10^2\,\text{rev}}{60\,\text{s}}\times\dfrac{2\pi\,\text{rad}}{\text{rev}}=\dfrac{62\pi\,\text{rad}}{3\,\text{s}}\approx\boxed{64.93\,\text{rad/s}}$

(b)

$d=r\theta=(3.0\,\text{m})(2.0\cdot 10^2\,\text{s})\left(\dfrac{62\pi\,\text{rad}}{3\,\text{s}}\right)=124\pi\cdot 10^2\,\text{m}=\boxed{38\,956\,\text{m}}$

6 0

3 years ago

Part A What is the resistance of a 4.4 m length of copper wire 1.3 mm n diameter? The resistivity of copper is 1.68x 10-8 Ω-m Ex

Natalija [7]

Explanation:

It is given that,

Length of the copper wire, l = 4.4 m

Diameter of copper wire, d = 1.3 mm = 0.0013 m

Radius of copper wire, r = 0.00065 m

The resistivity of the copper wire, $\rho=1.68\times 10^{-8}\ \Omega-m$

We need to find the resistance of the copper wire. It is given by :

$R=\rho\dfrac{l}{A}$

$R=1.68\times 10^{-8}\ \times \dfrac{4.4\ m}{\pi (0.00065)^2}$

R =0.055 ohms

So, the resistance of the copper wire is 0.055 ohms. Hence, this is the required solution.

7 0

3 years ago

What force is required to accelerate a body with a mass of 15 kilograms at a rate of 8 m/s²?

Dominik [7]

Force is defined as Mass multiplied by Acceleration, or F = MA.
We have our mass, 15 kg.
We also have our acceleration, 8 m/s^2.
Let's plug in our numbers and solve.

F = 15(8)
Multiply 8 by 15.
8 • 15 = 120.

Your Force is 120.
Remember, the unit of measure for Force is Newtons (N).

Your final answer is:

120N.

I hope this helps!

7 0

3 years ago