How much extra water does a 21.5 ft, 175-lb concrete canoe displace compared to an ultra-lightweight 38-lb Kevlar canoe of the s
1 answer:
Answer:
The volume of the extra water is
Solution:
As per the question:
Mass of the canoe,
Height of the canoe, h = 21.5 ft
Mass of the kevlar canoe,
Now, we know that, bouyant force equals the weight of the fluid displaced:
Now,
(1)
where
V = volume
= density
m = mass
Now, for the canoe,
Using eqn (1):
Similarly, for Kevlar canoe:
Now, for the excess volume:
V =
V =
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{
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else
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Answer:
0.1 nm
Explanation
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Mass of electron
Let the velocity of electron = v
Charge on the electron
plank's constant h =
According to energy conservation
Now we know that De Broglie wavelength