What change occurs in a muscle during an eccentric contraction

If forces acting on an object are unbalanced. true or false

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)

Define the terms moral development and moral reasoning.