The answer is all of these
The property that does not describe an acid is that it has a bitter taste. Acids have a sour taste, Bases have a bitter taste.
The total distance traveled by the car at the given velocity and time is 900 m.
The given parameters:
- <em>initial velocity of the car, u = 20 m/s</em>
- <em>acceleration of the car, a = 12 m/s²</em>
- <em>time of motion of the car, t = 20 s</em>
- <em>final time = 30 s</em>
- <em>final acceleration = 2 m/s²</em>
The final time of motion of car before coming to rest is calculated as follows;

The graph of the car's motion is in the image uploaded.
The total distance traveled by the car is calculated as follows;

Thus, the total distance traveled by the car at the given velocity and time is 900 m.
Learn more about velocity-time graph here: brainly.com/question/24874645
Answer:
The correct option is;
Still constant
Explanation:
The relative refractive index ₁n₂ between the two medium can be as follows;

Therefore, given that the speed of light in medium 1 is constant and the speed of light on medium 2 is also constant, the relative refractive index ₁n₂ = c₁/c₂ is always constant.