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1 answer:
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Explanation:
The height of the rise of liquid with capillary tube is given by the formula as follows :
Where
r is radius
It is clear that the height of the rise of liquid is inversely proportional to the radius of the capillary tube.
If the radius of the capillary tube is doubled, it means the height of rise of liquid with capillary tube become half.
Answer:
a). The velocity of the first log is -1.65 m/s.
(b). The velocity of the second log is 1.07 m/s.
Explanation:
Given that,
Mass of lumberjack M= 110 kg
Mass of log m= 206 kg
Final velocity = 3.09 m/s
(a). We need to calculate the velocity of the first log just before the lumberjack jumps off
Using conservation of momentum
Put the value into the formula
The velocity of the first log is -1.65 m/s.
(b). If the lumberjack comes to rest relative to the second log
We need to calculate the velocity of the second log
Put the value into the formula
The velocity of the second log is 1.07 m/s.
Hence, (a). The velocity of the first log is -1.65 m/s.
(b). The velocity of the second log is 1.07 m/s.