2 years ago

Example of the center of the gravity

Physics

1 answer:

velikii [3]2 years ago

5 0

Answer:

The example of the center of the gravity is the middle of a seesaw

Explanation:

I hope this will help you and plz mark me brainlist

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Jupiter's semimajor axis is 7.78×1011 m. The mass of the Sun is 1.99×1030 kg. (a) What is the period of Jupiter's orbit in secon

dedylja [7]

Explanation:

It is given that,

Semi major axis of the Jupiter, $a=7.78\times 10^{11}\ m$

Mass of the sun, $M=1.99\times 10^{30}\ kg$

(a) Let T is the period of Jupiter's orbit. It is given by :

$T^2\propto a^3$

$T^2=\dfrac{4\pi^2}{GM}a^3$

$T^2=\dfrac{4\pi^2}{6.67\times 10^{-11}\times 1.99\times 10^{30}}\times (7.78\times 10^{11})^3$

$T=3.74\times 10^8\ s$

(b) We know that,

$1\ year=3.154\times 10^7\ s$

$1\ s=3.171\times 10^{-8}\ year$

$3.74\times 10^8\ s={3.171\times 10^{-8}}\times {3.74\times 10^8}$

T = 11.859 earth years

Hence, this is the required solution.

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2 years ago

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Which change will cause the gravitational force between a baseball and a soccer ball to increase ? Check all that apply

Alex73 [517]

Moving the balls closer together pumping more air into the soccer ball putting the baseball in a plastic case

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What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wave

Llana [10]

Explanation:

It is given that,

The thinnest soap film appears black when illuminated with light with a wavelength of 535 nm, $\lambda=5.35\times 10^{-7}\ m$

Refractive index, $\mu=1.33$

We need to find the thickness of soap film. The soap film appear black means there is an destructive interference. The condition for destructive interference is given by :

$2t=m\dfrac{\lambda}{\mu}$

t = thickness of film

m = 0,1,2....

$\mu$ = refractive index

$t=m\dfrac{\lambda}{2\mu}$

$t=\dfrac{\lambda}{2\mu}$

For thinnest thickness, m = 1

$t=1\times \dfrac{5.35\times 10^{-7}\ m}{2\times 1.33}$

$t=2.01\times 10^{-7}\ m$

Hence, this is the required solution.

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2 years ago

Help me please with this

Gre4nikov [31]

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3 years ago

Example of the center of the gravity​

Example of the center of the gravity