Después de una colisión completamente elástica, dos pelotas de masas m 1 = 0,8 kg y m 2 = 1,2 kg, rebotan con velocidades de 2,5 m/s y -3 m/s respectivamente. ¿Cuáles eran las velocidades de las 2 pelotas antes de la colisión?

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere