Aspring has a spring constant of 113 n/m . how much elastic potential energy is stored in the spring when it is compressed by 0.03 m? a: 0.23 j b: 0.022 j c: 0.051 j d: 1.70 j

Which statement best explains why an object weight less on mercury than it does on earth

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?