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aleshachrishon42
29.01.2021 •
Physics
(d)
PLEASE HELPPP
A soil sample was taken from the area around Chernobyl in 1986
The soil sample was contaminated with equal amounts of caesium-137 and iodine-131
Explain how the risk linked to each isotope has changed between 1986 and 2018
Both isotopes emit the same type of radiation.
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Ответ:
Total distance = 22.5 kilometers
Explanation:
Let the first distance be A.
Let the second distance be B
Given the following data;
Speed A = 30km/h
Time A = 15 minutes to hours = 15/60 = 0.25 hour
Speed B = 60km/h
Time B = 15 minutes to hours = 15/60 = 0.25 hour
Now, to find the respective distance traveled;
Distance A = speed A * time A
Distance A = 30 * 0.25
Distance A = 7.5 km
Distance B = speed B * time B
Distance B = 60 * 0.25
Distance B = 15 km
Next, we calculate the total distance traveled;
Total distance = Distance A + distance B
Total distance = 7.5 + 15
Total distance = 22.5 kilometers.
Therefore, the total distance covered by the object is 22.5 kilometers.