un flujo magnético de 20×10-5 wb pasa perpendicularmente a través de una espira de alambre que tiene un área de 0.04m2. ¿cuál es la a magnitud de la densidad del flujo magnético?​

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

List four observations that indicate that a chemical reaction may be taking place

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.