In his proposed model of the atom, j.j. thomson imagined the atom contained scattered positive and negative charges electrons and space filled with wispy positive charge electrons and space with positive charge concentrated in the center only electrons

In his proposed model of the atom, J.J. Thomson imagined the atom contained electrons and space filled with wispy positive charge .

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Q1. C

Q2 and Q3 are correct.

Explanation:

Since F=ma, and the force is a constant,

for the greatest acceleration, the mass of the ball must be the least.

Thus ball C has the greatest acceleration.

Let's check:

A) F=ma

a=F/m

a= F/68

B) a=F/72

C) a= F/64 (✓)

The smaller the denominator, the larger the value of a.

(Think: 1/2 >1/3)