A marksman at rest fires a 3.75-kg gun that expels a bullet of mass 0.0150 kg with a velocity of 197 m/s. The marksman is pushed backwards, called a recoil, so that he has a velocity of 0.0395 m/s. What
is the marksman's mass?

i wanna say it’s between b and d, leaning more towards b.

the answer is mosques. they are an important part of islamic culture.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.

can somebody give me the answer so i can graduate