2 years ago

A car travels from rest to 85 m/s and covers 150 meters. How LONG did that take? *

Physics

1 answer:

kherson [118]2 years ago

4 0

Answer:

51.76

Explanation:

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Given:

u(initial velocity)=0

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t= 4 sec

Now we know that

v= u + at

Where v is the final velocity

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3 years ago

How much energy is needed to melt 5 g of ice? The specific latent heat of melting for water is 334000 J/kg.

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Answer:

The needed energy to melt of ice is 1670 J.

Explanation:

Given that,

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Specific latent heat = 334000 J/kg

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$Q=mL$

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L = latent heat

Put the value into the formula

$Q=5\times10^{-3}\times334000$

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