Physics, 14.01.2020 00:31 jamilamiller200

Amoon of mass 1 x 10" kg is in a circular orbit around a planet. the planet exerts a gravitational force of 2 x 104 n on the moon. the centripetal acceleration of the moon is most nearly

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Answer from: joeduf

The centripetal acceleration of the moon is $20\; \rm m/s^2$ .

Explanation:

Given information:

Mass of the moon is $m=1\times10^{20} \texttt{ kg}$

The gravitational force exerted by the planet on the moon is, $F=2\times10^{21}\rm \;N$ .

Now, the moon is revolving around the planet and the gravitational force will be responsible for centripetal force on the moon.

The centripetal force on the moon will be,

F_c=ma_c

where a_c is the centripetal acceleration of the moon.

So, the centripetal acceleration of the moon will be calculated as,

$F=F_c\\2\times10^{21}=ma_c\\2\times10^{21}=1\times10^{20}\times a_c\\a_c=20\; \rm m/s^2$

Therefore, the centripetal acceleration of the moon is $20\; \rm m/s^2$ .

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Answer from: hazle9586

C. 20 m/s²

The centripetal acceleration of the moon is nearly equal to 20 m/s²

Explanation:

Given:

Mass of the moon : $m = {1 \times 10^\(20}\ kg$

Gravitational force : $F_G = 2 \times 10^$21 $N$

a_c = ?

As the gravitational force provides the centripetal force necessary for the moon to perform circular motion around the planet;

Centripetal Force = Gravitational force

F_C = F_G .....................(1)

$Centripetal force \ F_C= m\times a_c \\ where\\ F_C = Centripetal force \\a_c= Centripetal \ acceleration \\ m=mass\ of \ the \ moon$

From (1)

$F_C = F_G = m \times a_c\\\\a_c = \frac{F_G}{m} = \frac{2 \times 10^\(21}{1 \times 10^\(20}$

$a_c = 2 \times 10 = 20 \ m/s^2$

Centripetal acceleration = 20 m/s²

Answer from: Quest

answer: the answer is a

Answer from: Quest

quantum mechanics or quantum physics is physics of very small objects (particles) and physical entities.

quantum physics has some parallels to our macro world and some pretty unique ideas which theoretically and mathematically proven to be true even though we will never be able to access them because of our size.

there are many types of particles: subatomic, elementary etc.

subatomic means they are smaller than atom, elementary means they are at the very basis of everything.

subatomic particles are for eg. protons, neutrons but not electrons.

elementary particles are categorised into 3 groups by what they do.

these 3 groups are quarks, leptons and bosons.

light for example is a particle more precisely a photon a part of leptons.

proton (subatomic particle) is made out of 2 up quarks and 1 down quark each of these has a fractional charge like $\frac{1}{3}$ . (i crazy)

most famous scientist who contributed to this physics are:

max planckalbert einsteinerwin schrödingermany

the topic itself us understand a lot and will probably be vastly used in the future (quantum computers, understanding the big bang,

we also must not forget quantum effects like:

superposition (where 1 thing can be this and that at the same time),entanglement (where two particles are seemingly connected by some sort of unknown (or known) force, energy, matter (i know all that can be the same at least it was at the beginning)

and there is more. but probably too much for this answer to be consistent due to my average understanding of this topic.

hope this you understand quantum mechanics a little more. i'm not an expert in the topic (so don't be like wth if you are an expert) but i'm very interested in it.

anyways quantum physics is a very hard topic (harder than physics (perhaps)) therefore searching for every information there is about it and learning it is unfortunately impossible (you can only specialise into 1 - 3 things or more (perhaps

have fun and i wish you luck!

r3t40

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Amoon of mass 1 x 10" kg is in a circular orbit around a planet. the planet exerts a gravitational f...

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