Chemistry, 17.05.2021 17:50 yettionajetti
If half-life of thallium-208 is 2.35 days, how many days will it take for a 180g sample of thallium-208 to decay to only 22.5g?
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Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.
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Stage in which a star’s outer layers have started to cool and grow outward?
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No copying 15 pts how does a free-body diagram tell you about the net force on an object?
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If half-life of thallium-208 is 2.35 days, how many days will it take for a 180g sample of thallium-...
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