If a runner speeds up from 3 m/s to 9 m/s over a time of 2,3 seconds how much is the change in momentum if the force is 142 N?

Arock collection comes from which part of earth?

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?