Quattro masse, rispettivamente di 1.0 kg, 2.0 kg, 3.0 kg e 4.0 kg, sono poste nei vertici di un rettangolo, il cui lato maggiore misura 0.20 m e quello minore misura 0.10 m. a) Determinare modulo, direzione e verso della forza risultante che agisce sulla massa di 2.0 kg.
b) Come variano le risposte della domanda precedente se le lunghezze di tutti i lati vengono raddoppiate?

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.