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dolphi86 [110]
3 years ago
12

Cody’s car accelerates from 0M/S 245 in/at Northwoods and 15 seconds what is the acceleration of the car

Physics
1 answer:
Natali [406]3 years ago
3 0

Answer:

3m/s^2

Explanation:

Acceleration is change in velocity / time = 45/15 = 3m/s^2

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The answer is B

Explanation:

250g = 0.25kg

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Calculate the heat energy released when 13.3 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point.C
dmitriy555 [2]

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-270.321012\ J

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The number of moles is given by

n=13.3\times \dfrac{1}{200.59}\\\Rightarrow n=0.0663\ molHg

Heat is given by

Q_1=nC_v\Delta T\\\Rightarrow Q_1=0.0663\times 28\times (234.32-(273.15+25))\\\Rightarrow Q_1=-118.494012\ J

Heat released is given by

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Total heat is given by

Q=Q_1+Q_2\\\Rightarrow Q=-118.494012+(-151.827)\\\Rightarrow Q=-270.321012\ J

The total heat released is -270.321012\ J

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