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Vikentia [17]
3 years ago
15

Light bulbs transform electrical energy to light energy. No energy transformation is 100%. Thus, in the transfer from electrical

energy to light energy, some energy is dissipated as heat. The efficiency of an electrical device depends on: 1. how much energy is wasted ‐ transferred to unwanted stores 2. how much energy is transferred to useful stores The more energy a device wastes, the less efficient it is. The graph shows the efficiency of three types of light bulbs: incandescent, fluorescent, and LED. What can you conclude about the energy efficiency of the light bulbs? A) Incandescent light bulbs use less energy than either LED or fluorescent bulbs. B) Fluorescent light bulbs are the most energy efficient since their light and heat energy are most equal. C) Incandescent light bulbs rely on heat energy to process light, increasing the light output while decreasing the heat output. D) LED light bulbs provide more light energy while producing less heat energy, making them the most energy efficient of the three types of bulbs.
Chemistry
2 answers:
-Dominant- [34]3 years ago
8 0

Answer:

b got it right on the test

Explanation:

arlik [135]3 years ago
7 0

Answer: a

Explanation: usa test prep said it was right

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Which of the following statements is true with regard to transverse and longitudinal waves?
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Answer:

D (The last answer)

Explanation:

In a transverse wave, particles oscillate perpendicular to the direction of wave motion.

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Andru [333]

Answer:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

Explanation:

The given reaction represent the formation of glucose so it is photosynthesis reaction.

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It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.

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water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture  by chloroplast.

Chemical equation:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

it is known from balanced chemical equation that 6 moles of carbon dioxide react with the six moles of water and created one mole of glucose and six mole of oxygen.

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Unstable elements tend to combine with other elements to form
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they had killed other animals

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