I think the correct answer would be D. The tap water in the experiment is one the three test conditions of the independent variable, the type of water. The independent variable in a experiment is the one being manipulated or the one being changed. In this case, it is the type of water.
Answer:
6 m/s
Explanation:
12m / 2s = 6 m/s
Hope that's the answer you seek.
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.Displacement<span> is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
</span>To calculate displacement<span>, simply draw a vector from your starting point to your final position and solve for the length of this line. If your starting and ending position are the same, like your circular 5K route, then your </span>displacement<span> is 0. In physics, </span>displacement<span> is represented by Δs.
For me to solve this I would need to know the time, but I can give you a handy displacement calculator I used that helped me.
https://www.easycalculation.com/physics/classical-physics/constant-acc-displacement.php
Hope I helped.
</span>
Answer:
In chemistry, a nonmetal is a chemical element that is mechanically weak in its most stable form, brittle if solid, and usually gains or shares electrons in chemical reactions. There is no universal agreement on which elements are nonmetals; the numbers generally range from fourteen to twenty-three, depending on the criterion or criteria of interest.
The average speed of the car for the entire trip can be calculate by using:
![v=\frac{S}{t}](https://tex.z-dn.net/?f=%20v%3D%5Cfrac%7BS%7D%7Bt%7D%20%20)
where S is the total distance covered by the car, and t is the total time taken.
The total distance travelled by the car is:
![S=80 km+50 km+40 km=170 km](https://tex.z-dn.net/?f=%20S%3D80%20km%2B50%20km%2B40%20km%3D170%20km%20)
while the total time taken is:
![t=1.00 h+0.50 h+0.50 h=2.00 h](https://tex.z-dn.net/?f=%20t%3D1.00%20h%2B0.50%20h%2B0.50%20h%3D2.00%20h%20)
so, the average speed of the car is:
![v=\frac{S}{t}=\frac{170 km}{2.00 h}=85 km/h](https://tex.z-dn.net/?f=%20v%3D%5Cfrac%7BS%7D%7Bt%7D%3D%5Cfrac%7B170%20km%7D%7B2.00%20h%7D%3D85%20km%2Fh%20%20%20)
so, the correct answer is (3) 85 km/h.