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3 years ago

5

how much heat is needed to melt 2.5 kg of lead? The latent heat of fusion for lead is 5.85 Kcal/kg. The latent heat of vaporizat

ion of lead is 20.8 kcal/kg

1 answer:

sergey [27]3 years ago

5 0

I think its 550 deggres celsius.

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3 years ago

A cannonball with a mass of 1.0 kilogram is fired horizontally from a 500.-kilogram cannon, initially at rest, on a horizontal,

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The impulse J is equal to the magnitude of the force applied to the cannonball times the time it is applied:
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$F \Delta t= \Delta p$
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3 years ago

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2 years ago

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<h2>C. maintenance </h2>

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3 years ago

A person carries a plank of wood 2.00 m long with one hand pushing down on it at one end with a force f1 and the other hand hold

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Answer:

F₁ = 4,120.2 N

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Explanation:

1) Balance of angular momentum around the end where F₁ is applied.

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3 years ago