Un haz de luz en el aire incide sobre la superficie de una placa de cuarzo fundido (n=1.46). Parte del haz entra al cuarzo, con un ángulo de refracción de 30° y otra parte se refleja ¿cuál es el ángulo de reflexión?. Solo escribe el numero, sin el símbolo de grado.

An apple is falling from a tree. disregarding air resistance, which diagram shows the free-body diagram of the force or forces acting on the apple?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question