D.It draws objects together in proportion to their mass
Answer:
coordination
Explanation:
I know because I just took the test and got the answer right.
The displacement in simple harmonic motion is maximum when the velocity is zero
Answer: Option 5
<u>Explanation:
</u>
Displacement is the measure of variation between the end position and starting position. So displacement is path independent, it is completely based on them. As in simple harmonic motions, the net displacement is zero if the velocity seems to be maximum.
Because the motion of simple harmonic is to return to the starting point for a single oscillation. So, the displacement is opposite directions to the velocity. Thus if the displacement is required to be maximum for the simple harmonic motions, the velocity should be zero.
Answer:
Explanation:
Net force by which man push the lawn mower is given as
now it is given that 37% of this force is vertically downwards
so we will have
now we also know that
here we have
Now work done by this force to move the lawn mower is given as
The main advantage of hydroelectric energy is the fact that it is a renewable energy source (Option C).
<h3>What is hydroelectric energy?</h3>
Hydroelectric energy refers to the energy from water bodies that can be used to generate electricity.
Hydroelectric energy is stored as potential energy and then converted to kinetic motion energy to be converted into electricity.
Hydroelectric energy is renewable because it is indefinitely generated by water bodies in nature.
In conclusion, the main advantage of hydroelectric energy is the fact that it is a renewable energy source (Option C).
Learn more about hydroelectric energy here:
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