Work is defined as the use of force to move on object in the direction of the force and is equal to the forced times the distance object moved. how do energy and power related to work?

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

How many atoms of nitrogen are in the chemical formula ni(w on