Englishfor English speakers
lucrative
Adjective
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If something is lucrative, you can make money doing it.
Jackie runs a very lucrative catering business out of her home.
impulse
Noun
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A desire to do something.
The impulse to learn led me to study day and night.
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A thrust; a push; a sudden force.
Pushing an object gives it an impulse.
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The effect (integral) of force over time.
The total impulse from the impact will depend on the kinetic energy of the bullet.