What is the energy stored in a spring when it is compressed 5mm by a 60N force?
2 answers:
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ANSWER
{},{1}
EXPLANATION
The given set has one element. So it has
subsets.
These are,
{} and {1}.
That is, the null set and the set itself.
Remember that, the null set is a subset of every set and every set is a subset of itself.
{},{1}
EXPLANATION
The given set has one element. So it has
These are,
{} and {1}.
That is, the null set and the set itself.
Remember that, the null set is a subset of every set and every set is a subset of itself.
Wesley is approximately 25 miles away from the place he started.
Say, Wesley started from point A, he rowed his boat in north direction, covered 18 miles and stopped at B. From B, he again rowed 18 miles towards east. Finally, he stopped at position C.
From Pythagoras theorem, we can find, AC.
AC² = AB² + BC²
⇒ AC² = 18² + 18²
⇒ AC² = 2×18²
⇒ AC = √2×18 ≈ 25 miles.
Say, Wesley started from point A, he rowed his boat in north direction, covered 18 miles and stopped at B. From B, he again rowed 18 miles towards east. Finally, he stopped at position C.
From Pythagoras theorem, we can find, AC.
AC² = AB² + BC²
⇒ AC² = 18² + 18²
⇒ AC² = 2×18²
⇒ AC = √2×18 ≈ 25 miles.