Advanced Placement (AP), 05.02.2021 22:10 mova1o
3) Plutonium-239 has a half-life of 24,000 years and is considered safe only when its radioactivity has dropped to 1% of the original level. Approximately how long must the Pu-239 be stored securely to be considered safe?
Answers: 2
Advanced Placement (AP), 23.06.2019 18:20
Want free brainliest and free points? answer this drivers ed question and i got you! when turning left, watch for who are frequently struck by left-turning vehicles. a. bicyclists b. motorcyclists c. large trucks d. pedestrians
Answers: 1
Advanced Placement (AP), 23.06.2019 19:20
Do you want free brainliest and free points? answer this drivers ed question correctly and ill give you both : ) how can you count following distance? a. look for a moving object and count the seconds it takes for you to pass it after the car you are following has passed it. b. look for a stationary object and count the seconds it takes for you to pass it after the car you are following has passed it. c. look for the rear wheels of the car in front and count the number of rotations. d. look for the stripes on the road and count them as you pass by.
Answers: 2
Advanced Placement (AP), 25.06.2019 22:00
When must a driver yield to a pedestrian? a. only when the pedestrian is in the roadway b. only when the pedestrian is in a designated crosswalk c. only when the pedestrian has a walk signal d. always
Answers: 1
3) Plutonium-239 has a half-life of 24,000 years and is considered safe only when its radioactivity...
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