Un cuerpo de dos kilogramos de masa esta inicialmente en reposo en un plano horizontal y sin friccion. Si se aplica una fuerza horizontal de 10 N por un tiempo de 10 s, ¿Cual es el trabajo realizado por esta fuerza?

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?

Based on this activity, is kinetic energy always transformed into potential energy?

Mechanical energy is when there are no forces causing an object to lose energy. a. increased b. conserved c. decreased d. doubled i need this answer ! .