Answer:
The correct answer will be option-B.
Explanation:
A scientific hypothesis is the proposed perdition or idea which is based on the earlier works and knowledge related to the scientific issue. The hypothesis can be tested and proved on the basis of the experiments.
The proved hypothesis can either become law or theory after peer-reviewed by fellow scientists. If the hypothesis still has predictive capabilities help form another hypothesis. Such statements are known as the "theory".
Thus, Option-B is the correct answer.
Answer:
Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used.
Explanation:
Plz give brainliest!
I would say The answer is false
Part a)
Here in this we can use momentum conservation as there is no external force on it
here we know that
now by above equation
Part b)
Final kinetic energy of the system
Initial Kinetic energy of the system will be
So here kinetic energy is decreased for this system
final energy is less than initial energy
