Physics of a spring: Relationship between potential energy and work
Question: A spring is stretched after 4.0-kg object is hung on it vertically. The displacement is measured as 0.020 m. […]
Tag: energy
What is the difference between intensity, power, and energy?
Question: There is a speaker emitting sound with a uniform power of 250 W. At what distance will the intensity […]
What is horse power?
Power is energy per unit time. That’s the efficiency of work. Now here is a question. Which horse power is […]