Here u go I will submit other help for u
Answer:
195
Explanation:
he can only apply as much force as his body mass so it would be 195
Answer:

Explanation:
From the question we are told that:
Mass of astronaut 
Mass of tool 
Distance 
Velocity of separation 
Velocity of tool bag
Generally the equation for momentum is mathematically given by

Therefore
Initial Momentum before drop


Initial Momentum after drop

Therefore
Since 

Generally the equation for Time T is mathematically given by



ITS C
This element tends to lose 2 electrons to become a 2+ ion, is the correct statement regarding the element calcium. Calcium has 2 electrons in its outer shell and it is easier to lose them than it is to gain enough to become stable. When stable it has 2 more protons than electrons forming a 2+ ion.
B) through space I am sorry if it is wrong