Representa cómo imaginas que sea un sonido. justifica tu representación

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.