Physics, 20.05.2021 14:00 cobyontiveros
A sample of a radioactive material is placed near a radiation detector. A count-rate of 4800 counts/s is detected from
the sample. After 36 hours the count-rate has fallen to 600 counts/s.
Calculate how many more hours must pass for the count-rate to become 150 counts / s.​
Answers: 1
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A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant
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Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?
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A sample of a radioactive material is placed near a radiation detector. A count-rate of 4800 counts/...
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