Answer:
B. children have too much energy and play will rid them of that energy.
Explanation:
The surplus energy theory of play suggests that human being have excess of energy that must be released through active play.
This theory is given by Friedreich Schiller. Therefore, the correct answer is children have too much energy and play will rid them of that energy. rest of the option are examples of other theories, whereas Option B is the example of surplus energy theory.
Answer:
1.28 m
Explanation:
Generally, pressure of fluid is given by
where g is acceleration due to gravity, h is the height and is the density
Considering that the pressure for mercury is same as for blood only that the height and density of fluid are different then
Since g is constant, then
Making the subject of the formula then
Where subscripts m and b denote mercury and blood respectively
Assuming density of blood is 1060 Kg/m3, density of mercury as 13600 Kg/m3 and substituting height of mercury for 0.1 m then
A. atoms fuse in the sun, but atoms break up in nuclear power plants.
The process in the Sun is a Fusion Process, atoms are fused, while the process in nuclear power plant is a Fission Process, atoms break up.
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Hello!</h2>
The answer is: The resultant force is equal to 200 lb.
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Why?</h2>
From the statement, we know that both forces are acting at right angles, meaning that there is a vertical force and a horizontal force.
We can solve this problem using the Pythagorean Theorem, which states that:
Let be:
a, the horizontal force (x)
b, the vertical force (y)
c, the resultant force (r)
So, assuming that:
Calculating the resultant force, we have:
Hence, the resultant force is equal to 200 lb.
Have a nice day!
The answer is A I hope this helps.