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True or False. You only need good posture when you exercise.
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Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?
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Which statement correctly describes the relationship between frequency and wavelength?
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Physics, 22.06.2019 13:00
The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot
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Physics, 22.06.2019 18:00
Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
Answers: 1
True or False. You only need good posture when you exercise....
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