Answer:
The moment for making a sacrifice is when you receive more value than the value you give.
Explanation:
To sacrifice is giving up something very important to receive something more valuable, or someone worth sacrifice. Making a sacrifice is usually related to some other person who influences in making decisions.
People who sacrifice to receive something greater don’t regret sacrificing, they look at that as another path they have chosen and they are happy with the result.
What are the words for the question?
It's B because he won't give up lifting the object untill he can do it.
Answer:
B. Francis Cabot Lowell
Explanation:
Lowell is considered the principal founder of what is said to have been the world's first textile mill in which were performed all operations converting raw cotton into finished cloth.

The harmonic frequency refers to the resonant frequency that is an integral multiple of the fundamental frequency, harmonics are usually simple sinusoidal oscillation at a single frequency. where as Resonance frequency are frequencies that are not necessarily sinosudal or integral multiple of fundamental frequency and it may have complex oscillations made up of multiple harmonics ~
It's like if you play a piano with a single key, it will show harmonic frequency, but if you use multiple keys at a time it may show Resonance.