<span>the placement of the fulcrum</span>
Answer:

Explanation:
The frequency of a sodium vapor lamp, 
We need to find the wavelength of light. The relation between wavelength, frequency and speed of light is given by :

So, the wavelength of light is equal to
.
Answer:
The answer is Muscular endurance
Explanation:
It is this because your seeing how long your muscles can with stand. I answered by guessing lol.
Because you are not using gas oil etc, in other words you are saving fossil fuels by walking instead of driving a car
also could I get brainliest plz
I think it’s the first diagram