Answer:
Option (1), option (4) and option (5)
Explanation:
The main observations of Ernest Rutherford's experiment are given below:
1. most of the positively charged particles pass straight, it means there is an empty space in the atom.
2. Very few positively charged particles retraces their path.
So,
The positively charged particles were deflected because like charges repel, that means they are deflected by protons.
Almost all the positively charge concentrate in a very small part which is called nucleus.
Answer: A negatively charged particle that is found in atoms.
The earth is considered an Open system which is B.
I think it's 6/8, you multiply by 2. 3/4 x 2 = 6/8.
Explanation:
by the formula, v²-u²=2aS
S=12m, a=2m/s², v=25m/s, u=?
v²-u²=2aS
25²-u²=2×2×12
-u²=48-625
-u²=-577
u²=577
u=√577
u = 24.02m/s
hope this helps you.
