Answer: option B
Explanation: when a neutral atom loses an electron or gains a positive charge electron, it becomes a positive ion (positively charged) and when an neutral atom gains an electronic charge or losses a positive charge electron, it becomes a negative ion (negatively charged).
Answer:
44.4 m/s
Explanation:
d = 80 m, t = 1.8 s, find v
d = v*t
v = d/t = 80/1.8 = 44.4 m/s
Answer:
The final acceleration becomes (1/3) of the initial acceleration.
Explanation:
The second law of motion gives the relationship between the net force, mass and the acceleration of an object. It is given by :
![F=ma](https://tex.z-dn.net/?f=F%3Dma)
m = mass
a = acceleration
According to given condition, if the mass of a sliding block is tripled while a constant net force is applied. We need to find how much does the acceleration decrease.
![a=\dfrac{F}{m}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7BF%7D%7Bm%7D)
Let a' is the final acceleration,
![a'=\dfrac{F}{m'}](https://tex.z-dn.net/?f=a%27%3D%5Cdfrac%7BF%7D%7Bm%27%7D)
m' = 3m
![a'=\dfrac{F}{3m}](https://tex.z-dn.net/?f=a%27%3D%5Cdfrac%7BF%7D%7B3m%7D)
![a'=\dfrac{1}{3}\times \dfrac{F}{m}](https://tex.z-dn.net/?f=a%27%3D%5Cdfrac%7B1%7D%7B3%7D%5Ctimes%20%5Cdfrac%7BF%7D%7Bm%7D)
![a'=\dfrac{1}{3}\times a](https://tex.z-dn.net/?f=a%27%3D%5Cdfrac%7B1%7D%7B3%7D%5Ctimes%20a)
So, the final acceleration becomes (1/3) of the initial acceleration. Hence, this is the required solution.