I feel good to come back to also have some free 20 points

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

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)