3 years ago

The melting point of a substance occurs at the same temperatures as it’s blank point

Physics

2 answers:

azamat3 years ago

4 0

I think it's a.

Explanation:

melting point is boiling

Anna [14]3 years ago

3 0

I agree with them I belive I tea a as well

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How much heat is needed to melt 13.74 kg of silver that is initially at 20°C?

salantis [7]

Answer:

$Q = 4.63 \times 10^6 J$

Explanation:

As we know that melting point of silver is

T = 961.8 degree C

Latent heat of fusion of silver is given as

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specific heat capacity of silver is given as

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now we will have

$Q = ms\Delta T + mL$

$\Delta T = 961.8 - 20$

$\Delta T = 941.8 degree C$

now from above equation

$Q = (13.74)(240)(941.8) + (13.74)(111 \times 10^3)$

$Q = 3.1 \times 10^6 + 1.53 \times 10^6$

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mihalych1998 [28]

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With what force will a car hit a tree if the car has a mass of 3,415 kg and it is accelerating at

weeeeeb [17]

Answer:

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