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Svetradugi [14.3K]
3 years ago
8

Find the acceleration if a car goes from 40 to 50 mph in 5 seconds

Chemistry
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

62.5 mph/seconds

Explanation:

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3 years ago
the temperature of a sample of water increases from 20celsius to 46.6celsius as it absorbs 5650 J of heat. what is the mass of t
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Answer:

m = 50.74 kg

Explanation:

We have,

Initial temperature of water is 20 degrees Celsius

Final temperature of water is 46.6 degrees Celsius

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It is required to find the mass of the sample. The heat absorbed is given by the formula ad follows :

Q=mc\Delta T

c is specific heat of water, c = 4.186 J/g°C

So,

m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{5650}{4.186\times (46.6-20)}\\\\m=50.74\ kg

So, the mass of the sample is 50.74 kg.

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What is conclusive evidence that mixing sugar in water is a physical change
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Explanation:

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6 0
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How do you tell by the formula that an element on the periodic table is a metal
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