Answer:
3.87 or 3.9 mg
Explanation:
2.7h * 60mins = 162mins
number of 1/2 lives = 162/22= 7.364
amount remaining = 639(1/2)^7.364 = 3.8796
answer = 3.87 or 3.9
The tectonic plates below earths surface shape earths landforms
In physics, we define speed as:
speed = distance / time, or
In order for this to work properly - we need to convert 1.9 minutes into seconds. One minute is 60 seconds, nine tenths of a minute is 54 seconds. So 1.9 minutes in seconds is 60 + 54 = 114.
Now just solve the fraction.
Jude travels .06 m/s.
Potassium and Chlorine is a mixture.
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