The weight is in equilibrium, so the two forces acting on it (tension <em>T</em> pulling upward, and its own weight <em>W</em> pulling it downward) cancel each other. By Newton's second law,
∑ <em>F</em> = <em>T</em> - <em>W</em> = 0
so that
<em>T</em> = <em>W</em>
Calculate the object's weight:
<em>W</em> = (20 kg) (9.8 m/s²) = 196 N
So the tension is <em>T</em> = 196 N as well.
Answer:
<em>Vernal equinox, autumnal equinox, march equinox, September equinox, northward equinox and southward equinox </em><em>are the names for the equinoxes.
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<u>Explanation:
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There are different names which are named depending on the <em>month of the year when these equinox occurs and depends upon direction of motion of the sun</em>.<em> Equinox is a point where day time and night time have exactly equal length of time.</em>
Equinox occurs <em>twice</em> in a year and this occurs when <em>earth's equator passes through the sun</em>. We can say that equinox occurs when the sun’s center is directly above the equator.
Answer:
The time taken by the car is 8.94 seconds.
Answer: I think the first option is the best option because water isn't a heat conductor and all the other options are not very accurate.
Explanation:
The wave speed completely depends on the characteristics and properties of the medium . . . physical properties for mechanical waves, electrical properties for electromagnedtic waves.
So if you want to change the speed of a wave, you have to change the medium . . . shoot it through some different kind of stuff. <em>(B) </em>