When potential energy <u>decreases</u>, kinetic energy increases.
The buoyant force on the branch is given by:
F = pVg
F = buoyant force, p = water density, V = volume of branch submerged, g = gravitational acceleration
Given values:
p = 1000kg/m^3
V = 0.75x1.12m^3 (75% of total volume)
g = 9.81m/s^2
Plug in and solve for F:
F = 1000(0.75x1.12)(9.81)
F = 8240N
Answer:the answer is 34 the whole number you round it and find the answer
Explanation:
At a depth of 10 m, the manatee's neutral buoyancy keeps it at the same level in water as if there were no air inside its lungs. However, because more air is now contained in the manatee's lungs than before it dove, its weight increases by 9.81 kg and therefore it accelerates downwards (due to momentum). This downward acceleration continues until equilibrium is reached and then ceases due to gravity pulling on both objects equally.
As a result, the manatee now becomes negatively buoyant and must rise to compensate.
<h3>What does it mean when something has neutral buoyancy?</h3>
When something has neutral buoyancy, it is not affected by the weight of anything above or below it.
This means that objects with neutral buoyancy will stay in place regardless of how high or low they are located in a liquid medium.
Examples of things with neutral buoyancy include air balloons and swimming caps.
To learn more about neutral buoyancy, visit:
brainly.com/question/2170899
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Answer:
rotational kinetic energy increases
Explanation:
when an ice skater pulls his arms closer to his body there is no rotational torque because we know that torque = F×R here R is the distance and when arms are closer to body distance is very less so there will be no torque and so angular momentum is conserved but moment of inertia is also decreases and we know that rotational kinetic energy = 
where L= angular momentum
I = moment of inertia
as moment of inertia decreases and angular momentum is conserved so using the formula rotational kinetic energy increases
