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Aliun [14]
3 years ago
5

How many dwarf planets are there in our solar system?

Physics
2 answers:
Pavlova-9 [17]3 years ago
4 0
There are 5 dwarf plabets
erastova [34]3 years ago
4 0

Our Sun and Earth are part of what we call our solar system. There are eight big planets and five small, dwarf planets in the solar system. Each planet orbits the Sun.

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Which of the following is an example of a chemical change?
ss7ja [257]

Answer:

Burning Paper

Explanation:

This is a chemical reaction, because new substances are formed

6 0
2 years ago
A note of frequency 200Hz has a velocity of 400m/s. what is the wavelength of the note​
Xelga [282]

Answer:

\huge\boxed{\sf \lambda = 2 m}

Explanation:

<h3><u>Given data:</u></h3>

Frequency = f = 200 Hz

Velocity = v = 400 m/s

<h3><u>Required:</u></h3>

Wavelength = λ = ?

<h3><u>Formula:</u></h3>

v = fλ

<h3><u>Solution:</u></h3>

Put the givens in the formula

400 = (200)λ

Divide 200 to both sides

400/200 = λ

2 m = λ

λ = 2 m

\rule[225]{225}{2}

8 0
1 year ago
A glass of water at 20°C or a glass of water at 80°C explain
KiRa [710]

Answer:

1. A glass of water at 80°C because the more heat it will recieve, the more temperature increases. Heat is a sort of energy so the more it is heated, the more energy the water will recieve. So in comparison to 20°C, 80°C has more energy in it because it has a higher temperature.

2. An aluminium can at 30°C because the more heat it will recieve, the more temperature increases. Heat is a sort of energy so the more it is heated, the more energy the aluminium will recieve. So in comparison to 20°C, 30°C has more energy in it because it has a higher temperature.

Brainliest pweaseee if it is the correct answer! <3 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

6 0
2 years ago
Now instead a 3-mw laser of wavelength λ = 760 nm is directed into the interferometer (with the mirror m1 at the displacement ca
slavikrds [6]

power received will always remain same and does not depends on the distance

it will be same as the power of source

P = 3 mW

now the energy released by one photon is given as

E = \frac{hc}{\lambda}

E = \frac{6.6* 10^{-34}* 3 * 10^8}{760 * 10^{-9}}

E = 2.6 * 10^{-19} J

now let say N photons per second released

N * 2.6 * 10^{-19} = 3 * 10^{-3}

N = 1.15* 10^{16} per\: second

7 0
2 years ago
What is the formula of a compound formed between strontium (Sr) and chlorine (Cl)? (2 points)
Sidana [21]
The chemical formula of the compound of strontium and chlorine would be SrCl2. It is a salt of the strontium ion and chloride ion and a white crystalline compound. When burned, it produces a bright red hue. That is why it found some application in fireworks.  
 Read more on Brainly - brainly.com/sf/question/4154091
8 0
3 years ago
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