one end of a horizontal spring(k=80N/m)is held fixed while an external force is applied to the free end, stretching it slowly from×1=o to ×2=4cm. what is work done by the applied force on the spring​

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

The energy released by a nuclear fusion reaction is produced when