Https://www.physicsclassroom.com/class/refrn/Lesson-2/The-Angle-of-Refraction
An incandescent bulb produces light that comes from the heating of a filament. A compact fluorescent bulb produces light when a substance is hit by electromagnetic radiation. Compact fluorescent bulbs are more efficient than incandescent bulbs.
The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic processes. Therefore, a system with lower heat emissions would be more efficient.
The second law of thermodynamics states that the total entropy of an isolated system (the thermal energy per unit temperature that is unavailable for doing useful work) can never decrease. In our context, it means that the system with the least amount of losses would be more efficient. As a conclusion the fluorescent bulb would be more efficient.
No, because of that "seem" part of the question.
Your hearing system is not a linear sound detector and meter.
Sounds with equal amplitudes at different frequencies "seem"
to have different loudness, and the differences are different
for different people.
You've probably heard the saying "Things are not always as they seem."
The fact is, they NEVER are.
Answer:
Distance traveled by car in 25 L IS 396.15 km
Explanation:
We have given average millage of car = 60 km /gal
Means car travel 60 km in 1 gallon
The amount of gasoline = 25 L
We know that 1 L = 0.2641 gallon
So 
As the car travels 60 km in 1 gallon
So traveled distance by car in 6.6025 gallon of gasoline = 60×6.6025 = 396.15 km
Signs, pedestrians and other vehicles.
