На рисунке изображено преломление луча света на границе двух сред. Какая среда оптически более плотная? С дано можно пж ​

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical