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aniked [119]
3 years ago
6

How much energy is used by a 900 w microwave that operates for 4 minutes ?

Physics
1 answer:
saveliy_v [14]3 years ago
7 0

Answer:216000 joules

Explanation:

Firstly we have to convert time from minutes to seconds

Therefore 4minutes = 60×4 =240seconds

Energy=power×time

Energy=900×240

216000joules

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An engine absorbs 1.69 kJ from a hot reservoir at 277°C and expels 1.25 kJ to a cold reservoir at 27°C in each cycle.
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Answer

Given,

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8 0
3 years ago
The whooping crane (Grus americana) is the tallest bird native to North America. It almost went extinct in the 1900s; in 1938, t
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Answer:

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Explanation:

From the question we are told that

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  The  exponential relationship is  N  =  na^{kt}

Now from the given equation we have that

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So comparing this equation obtained an the given  exponential relationship we have that

      n = 17.29

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        a =  e =  2.7183

        a =  2.7183

 

7 0
3 years ago
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