Dos individuos se mueven en sentido contrario y velocidades constantes (30m/s y 90/s) ¿después de que tiempo se encuentran si inicialmente están separados 180m?

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

What are the north and south poles of a solenoid change with?

Which of the following statement is false