cual es la importancia que tiene analizar, interpretar y entender los sistemas oscilatorios desde un punto de vista físico?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply