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hjlf
3 years ago
8

How many planets are there?

Physics
2 answers:
Crank3 years ago
7 0
It would be 8 (in our solar system)
Mercury, Venus, Earth :D, Mars, Jupiter, Saturn, Uranus, and Neptune.

Many people believe Pluto is a planet, but it's been made official in 2006 that it should be dubbed a dwarf planet
beks73 [17]3 years ago
5 0
Hi there!

Assuming you're asking about the solar system, there are nine planets. But, if you're wanting to know about the universe, there are trillions and trillions of planets (most of which we haven't yet discovered). 

Hope this helps!
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What does the "coefficient of friction" tell you?
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An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?
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"Acceleration" means any change in the speed or direction of motion ... speeding up, slowing down, or turning.  So . . .

<span>-- </span><span>The distance traveled in a certain time may increase or decrease.

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7 0
3 years ago
Read 2 more answers
Why current remains same in series combination of resistors in all resistors and p.d. remains different?
IgorC [24]
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3 years ago
We can predict the path of a hurricane because of the work of which of the following scientists?
musickatia [10]

Answer:C

Explanation:

4 0
2 years ago
Suppose a certain jet plane creates an intensity level of 124 dB at a distance of 5.01 m. What intensity level does it create on
Zolol [24]

Answer:71 dB

Explanation:

Given

sound Level \beta _1=124 dB

distance r_1=5.01 m

From sound Intensity

\beta =10dB\log (\frac{I_1}{I_0})

124=10dB\log (\frac{I_1}{I_0})

12.4=\log (\frac{I_1}{I_0})

I_1=(1\times 10^{-12})\times 10^{12.4}

I_1=2.51 W/m^2

we know Intensity I\propto ^\frac{1}{r^2}

I_1r_1^2=I_2r_2^2

I_2=I_1(\frac{r_1}{r_2})^2

I_2=2.51\cdot (\frac{5.01}{2.25\times 10^3})^2

I_2=1.24\times 10^{-5} W/m^2

Sound level corresponding to I_2

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\beta _2=70.93\approx 71 dB

6 0
3 years ago
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