2 espejos planos formando un ángulo de 90° entre sí. Traza un rayo luminoso que incida en uno de los espejos con un ángulo de incidencia de 60°.
Traza la trayectoria del rayo luego de su reflexión en el espejo.
Dicho rayo reflejado incide en el segundo espejo, convirtiéndose en rayo incidente en este espejo, así que representa la trayectoria que sigue el rayo después de la nueva reflexión.

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Most of the volume of an atom is occupied by the

A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu