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Mazyrski [523]
3 years ago
15

A night lamp uses a 30 W bulb. If it is left on continuously for 8 hours, how much energy will it use?

Physics
2 answers:
den301095 [7]3 years ago
6 0

Answer:

Explanation:

30W * 8 h = 240 Wh = 0.240 kWh

bezimeni [28]3 years ago
4 0

Answer:

0.24 kWh

Explanation:

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The sound from a bolt of lightning travelled 4.08 km in 12.0 s. What was the speed
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Set up a calculation to convert units of measure to what you need.

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The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorous and oxygen act together as on
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The question is incomplete, the complete question is;

The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorus and oxygen act together as one charged particle, which is connected to magnesium, the other charged particle. What does the 2 mean in the formula 5Mg3(PO4)2? A. There are two elements in magnesium phosphate. B. There are two molecules of magnesium phosphate. C. There are two magnesium ions in a molecule of magnesium phosphate. D. There are two phosphate ions in a molecule of magnesium phosphate.

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There are two phosphate ions in a molecule of magnesium phosphate.

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The compound magnesium phosphate is an ionic compound. Ionic compounds always consists of two ions, a positive ion and a negative ion.

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