Answer:
m1u1+m2u2=(m1+m2)v.
500×4+1500×2=(500+1500)V.
2000+3000=2000V.
5000=2000V.
V=2.5m/s
Bones make sure the arms structure is stable while the muscle is the one actively moving it and carrying out actions.
the answer to some may be Force A
Explanation:
the rubber band will be at its greatest when its fully stretched out
Q = mc∆T
= (0.34 kg)(94 J/kg-°C)(25°C)
= 799 J