Scientists refute the early atomic theory claim that atoms were indivisible as “Scientists bombarded atoms of large mass with neutrons, observed reaction products with much smaller mass, and described this result as fission”
.
Answer: Option D
<u>Explanation:
</u>
John Dalton was the first one to propose a model for atomic structure. According to him, atoms were tiny, indivisible materials which are used as building blocks of every elements. This formed the basis of atomic structure at that time.
But with the time, different experiments were performed by Rutherford, Bohr, Sommerfield and found that there is discrepancy in the fundamental postulates of atomic theory. Then the success of nuclear fission reaction completely refute the Dalton’s postulates of atomic theory. Because according to Dalton, atoms cannot be divided further.
But in nuclear fission reaction, scientists bombarded atoms of large mass with neutrons and the products are formed as elements of smaller mass compared to reactants. So, this proved that atoms can be divided further by neutrons. Thus, nuclear fission reaction made the scientists to completely refute the early atomic theory claim.
<h2> F = k×
</h2>
Explanation:
- The attractive or repulsive forces which act between any two charged species is an electric force.
- The electric force depends on the distance between the charged species and the amount of charge which can be calculated by the formula given as follows
F = k×
where, K is coulombs constant, which is equal to - 9 x10^9
- The unit for K is newtons square meters per square coulombs.
- This is known as Coulomb's Law.
Use Newton's 2nd law of motion.
Here it is:
Force = (mass) x (acceleration)
= (80 kg) x (-5 m/s²)
= -400 Newtons .
I called the acceleration negative because the player is slowing down.
The force comes out negative because it's in the direction opposite to
his motion.
Answer: i think that it’s higher flyers