Chiếu 1 tia sáng từ không khí tới gặp mặt nước chiến suất N=1.33 tại I góc tới i. Xác định góc khúc xạ r trong 2 trường hợp sau a/ i=30 độ b/ i=60 độ

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Explain what happens at the saturation point when adding salt to water at room temperature.