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makvit [3.9K]
3 years ago
7

Can u help me thanks so Much ❤️

Physics
1 answer:
Nuetrik [128]3 years ago
3 0
1) Constant speed
2) Slowing down
3) Not moving
4) Speeding up
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Does heat rise or fall?? the last person that answered did it just for the points and gave me no real answer
nasty-shy [4]
Heat does not rise or fall because it is an energy being transferred. It is the hot air which rises because colder air is denser than hotter air.
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3 years ago
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Helpppppppppppp.......!
Black_prince [1.1K]

Explanation:

m = 66 kg

a = 2 m/s²

F = .....?

<h3>F = m . a</h3>

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<h3>#CMIIW</h3>

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3 years ago
A solid conducting sphere with radius R that carries positive charge Q is concentric with a very thin insulating shell of radius
Nostrana [21]

Explanation:

Gauss Law relates the distribution of electric charge to the resulting electric field.

Applying Gauss's Law,

                              EA = Q / ε₀

Where:

E is the magnitude of the electric field,

A is the cross-sectional area of the conducting sphere,

Q is the positive charge

ε₀ is the permittivity

We be considering cases for the specified regions.

<u>Case 1</u>: When r < R

The electric field is zero, since the enclosed charge is equal to zero

                                            E(r) = 0

<u>Case 2</u>: When R < r < 2R

The enclosed charge equals to Q, then the electric field equals;

                              E(4πr²) = Q / ε₀

                              E = Q / 4πε₀r²

                              E = KQ /r²

Constant K = 1 / 4πε₀ = 9.0 × 10⁹ Nm²/C²

<u>Case 3</u>: When r > 2R    

The enclosed charge equals to Q, then the electric field equals;

                               E(4πr²) = 2Q / ε₀

                               E = 2Q / 4πε₀r²

                               E = 2KQ /r²        

4 0
3 years ago
A flag pole 18m high casts a shadow 9.6m long . Find the distance of top of pole from the far of end of Shadow. ​
puteri [66]

Answer:

{ \bf{pythogras \: theorem :}} \\   \\ { \tt{ =  \sqrt{ {9.6}^{2} +  {18}^{2}  } }} \\  = 20.4 \: cm

8 0
3 years ago
Which of the following phase changes occurs at point B on the phase diagram shown below? (choose all that apply)
Alex
I’m just gonna try an wander the the best I can, sorry if this is wrong I haven’t been taught this subject yet-

I’m Guessing its sublimating

( I’m sorry if this is wrong, remember I haven’t been taught this yet I’m only in 6th-)
4 0
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