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BaLLatris [955]
3 years ago
15

Explain why incandescent light bulbs are not energy efficient? Also use the words heat energy, electricity energy, light energy.

Physics
1 answer:
sladkih [1.3K]3 years ago
3 0
Because incandescent light bulbs emit much, much more heat energy than light energy. So, they convert more of the electric energy put into them into heat energy than light energy. P.S. Learn this stuff yourself. Don't cheat
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A train travels 200km/hr. how much distance will the train be from the station in 2.5 hours?
SCORPION-xisa [38]

Answer:

500km

Explanation:

Given parameters:

Speed  = 200km/hr

Time taken  = 2.5hrs

Unknown:

Distance  = ?

Solution:

To solve this problem, we use the speed, time and distance equation.

   Therefore;

  Distance  = Speed x time

So;

  Distance  = 200 x 2.5  = 500km

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3 years ago
a backpack has a mass of 8 kg. it is lifted and given 54.9 J of gravitational potential energy. how high is is lifted? accelerat
dalvyx [7]
P=mgh
h=P/mg
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rodikova [14]

Whatever distance north and then west you walked, you are then

(1.41 x that distance)

northwest of where you started.

3 0
3 years ago
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marta [7]

Answer:

B.

Explanation:

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8 0
4 years ago
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