Aspring that has a spring constant of 1400 n/m is stretched to a length of 2.5 m. if the normal length of the spring is 1.0 m, how much elastic potential energy is stored in the spring? 700 j 1050 j 1575 j 4375 j

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²

Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass