Answer:
W = -1400 J
Explanation:
Let's use the relationship between work and kinetic energy
W = ΔK
kinetic energy is
K = ½ m v²
therefore in this case
K₀ = 1400 J
Thus
W = 0 -1400
W = -1400 J
The negative sign indicates that the work is done against the energy, that is, in the opposite direction to the movement
I'm not really sure what you are asking. I will try though. The main serving sizes as you know are:
1.Small
2.Medium
3.Large
To me, it depends on the person that is ordering the food, and what size they want it to come in. I hope that helped.
C) They are made of tiny droplets of water.
The cathode and anode are hooked up to an electrical circuit The chemical reactions in the battery causes a build up of electrons at the anode. This results in an electrical difference between the anode and the cathode. Hope this helps :)
I believe your answer would be False
They would only be elements because compounds and molecules consist of multiple elements