Answer:
ACTION REACTION FORCES
Explanation:
When there is an action frce there will be a reaction force
1/2mv^2
1/2x12x10^2=600J
The kinetic energy is 600J
The answer is C I just took this quiz.
Answer:
The fraction of the protons would have no electrons 
Explanation:
We are given that
Amoeba has total number of protons=
Net charge, Q=0.300pC
Electrons are fewer than protons=
We have to find the fraction of protons would have no electrons.
The fraction of the protons would have no electrons
=
The fraction of the protons would have no electrons
=

Hence, the fraction of the protons would have no electrons 