Answer:
d=√[(x₂ - x₁)² + (y₂ - y₁)²]
Work= force*distance*cos(theta)
Since there's no angle here, this turns into 100*5= 500 joules.
<span>A continuous spectrum is one where the light emitted goes along the entire spectrum. A line spectrum is one that only emits a few frequencies. </span>
Answer:
Norma’s average speed is 41.9 km/h.
Explanation:
The average speed is given by:
![\overline{v} = \frac{d_{T}}{t_{T}}](https://tex.z-dn.net/?f=%20%5Coverline%7Bv%7D%20%3D%20%5Cfrac%7Bd_%7BT%7D%7D%7Bt_%7BT%7D%7D%20)
Where:
: is the total distance
: is the total time
We can find the total distance as follows:
Now, the total time is:
Hence, the average speed is:
![\overline{v} = \frac{d_{T}}{t_{T}} = \frac{289 km}{6.9 h} = 41.9 km/h](https://tex.z-dn.net/?f=%20%5Coverline%7Bv%7D%20%3D%20%5Cfrac%7Bd_%7BT%7D%7D%7Bt_%7BT%7D%7D%20%3D%20%5Cfrac%7B289%20km%7D%7B6.9%20h%7D%20%3D%2041.9%20km%2Fh%20)
Therefore, Norma’s average speed is 41.9 km/h.
I hope it helps you!