Astronauts need special tools to work in space. One specially designed tool that astronauts use is a screwdriver. Using Newton’s
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Answer:
11.23%
Explanation:
Lets take
Speed of man in still water =u= 1.73 m/s
Speed of flow of water = v=0.52 m/s
When swims in downward direction then speed of man = u + v
When swims in upward direction then speed of man = u - v
Lets time taken by man when he swims in downward direction is and when he swims in downward direction is
Lets distance is d and it will be remain constant in both the case
Time taken in still water
2 d= t x 1.73
t=1.15 x d sec
total time in current = 0.82 +0.44 d=1.26 d sec
So the percentage time
Percentage time =11.32%
So it will take 11.32% more time as compare to still current.
9514 1404 393
Answer:
- moderate low: 82
- moderate high: 112.75
- vigorous low: 123
- vigorous high: 174.25
Explanation:
When calculations are repetitive, I find it convenient to use a calculator that can work with tables.
The PMHR is (220 -15) = 205.
Each of the other heart rates is computed as the formula shows. For example, the low moderate heart rate is 205×0.40 = <u> 82 </u> bpm
The other rates are shown in the attached table. They are computed the same way.
