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Liono4ka [1.6K]
3 years ago
10

Plz do it all i will give brainlest and thanks to best answer.

Physics
2 answers:
Natasha_Volkova [10]3 years ago
7 0
It’s a because metal is a good heat conductor and I don’t see any other questions on there
maxonik [38]3 years ago
4 0
Its a, metal is a good conductor of heat so yea
Hope this helps :)
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Answer:

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Explanation:

4 0
3 years ago
A resistance of 1kΩ has a current of 0.25A throughout it when it is connected to the terminal of a battery. What is the potentia
pickupchik [31]

Answer:

The potential difference across the resistor is 250 volts.

Explanation:

The potential difference V across the ends of the resistor is given by

V = IR

where I is the current through the resistor and R is is its resistance.

Now, in our case

R = 1.0*10^3\Omega,

I = 0.25 A;

therefore, the potential across is

V = 0.25A (1.0*10^3\Omega)

\boxed{V = 250volts.}

6 0
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Scrie un eseu la tema:,,Rolul cîmpului magnetic al Pămîntului asupra omenirii
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Answer:

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WHY

Explanation:

WHY

5 0
3 years ago
What is the momentum of a child and a bicycle if the total mass of th
Sveta_85 [38]

bobo mag isip ayaw mag aral bobi

Explanation:

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6 0
3 years ago
You have a rock sample and analyze it for the presence of radioactive isotopes in order to determine when it was formed. You fin
Firdavs [7]

Answer:

the decay of half of the nuclei only a half-life has passed ,  b) in rock time it is 1 108 years

Explanation:

The radioactive decay is given by

         N = N₀ e^{\lambda t}

If half of the atoms have decayed

       ½ N₀ = N₀ e^{\lambda t}

       ½ = e^{\lambda t} ₀

       Ln 0.5 = - λ t

       t = - ln 0.5 /λ

The definition of average life time is

      T_{1/2}= ln 2 / λ

       λ = ln 2 /  T_{1/2}

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       λ = 0.693 10⁻⁸ years

We replace

       t = -ln 0.5 / 0.693 10⁻⁸

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We see that for the decay of half of the nuclei only a half-life has passed

b) in rock time it is 1 108 years

8 0
3 years ago
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