Rocket 20kg in force 100N at time 0 seconds it's velocity is 57m/s and how far away at time is 24.5seconds ​

There are weak or strong attractive forces between atoms of liquids with a high viscosity

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?