Un espejo esférico convexo tiene una distancia focal de 30cm. Un objeto luminoso de 4cm de altura se coloca delante del espejo a 30cm de distancia del vértice del mismo. Determino las características de la imagen.

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

What is the largest meteoroid that has collided with this planet