Look at the graph above. It shows how three runners ran a 100 meter race
2 answers:
Answer:
1. Albert
2. Charlie
3. 05 Seconds
4. 14 seconds
5. 8.33 m/s
Explanation:
The problems in the given scenarios can be solved just by analyzing the given the graph. Here the x-axis of the graph shows the time in seconds and y-axis shows the distance covered.
1. We can see that Albert finished the race in 12 seconds. This is lesser in comparison with Bob (14 seconds) and Charlie (17 seconds). Thus Albert is the winner of the race.
2. We can see that when Charlie reached at 50 meters, the time is increasing while the distance is same. It implies that he stopped there for some rest.
3. This rest was of 05 seconds.
4. Bob completed the race in 14 seconds.
5. Albert covered 100 m in 12 seconds, so his speed (v) will be,
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Answer:
The required new pressure is 775 mm hg.
Explanation:
We are given that gas has a volume of 185 ml and a pressure of 310 mm hg. The desired volume is 74.0 ml.
We have to find the required new pressure.
Let the required new pressure be ''.
As we know that Boyle's law formula states that;
where, = original pressure of gas in the container = 310 mm hg
= required new pressure
= volume of gas in the container = 185 ml
= desired new volume of the gas = 74 ml
So,
= 775 mm hg
Hence, the required new pressure is 775 mm hg.