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3 years ago

What is the kinetic energy of a 150 gram object moving at a velocity of 100 m/s?

Physics

1 answer:

Alex Ar [27]3 years ago

3 0

Answer:

750 J

Explanation:

lets convert mass into kg first , 150 /1000 = 0.15 kg

kinetic energy = $\frac{mv^{2} }{2}$ = $\frac{0.15*100^{2} }{2} = 750 J$

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Answer:

a. b- x= y

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3 years ago

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anygoal [31]

Answer:

a) $\Delta s=443037.9747\ J.K^{-1}$

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Explanation:

Given:

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final temperature of car, $T_f=44.4+273=317.4\ K$

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final temperature of house, $T_f=5.3+273=278.3\ K$

$\Delta s=\frac{dQ}{T_f-T_i}$

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