A gate at the bottom of a dam is 10 ft tall by 30 ft wide. The specific weight of the water is 62.4 lbf/ft3. If the water is 50
1 answer:
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Answer:
a)
b)
c) The estimate is low.
Explanation:
a) Using the energy conservation we have:
we have kinetic energy intially and gravitational potential energy at the maximum height.
b) We can use the equation of the gravitational force
(1)
We have that:
(2)
at the surface G will be:
Now the equation of an object at a distance x from the surface.
is:
Using that dv/dt is vdx/dt and integrating in both sides we have:
c) The difference is:
So the percent difference will be:
The estimate is low.
I hope it helps you!
Answer:
Height of the cube under water will be 3.33 cm
Explanation:
We have given height of the cube = 5 cm
Density of the material
Density of liquid
We have to find the height of the cube under the water
Height under water is given by
Height under water =
Height of the cube under water will be 3.33 cm