ignoring friction, what is the mass of an object accelerating at 1.8m/s2 to which an unbalanced force of 42 Newtons has been applied?​

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

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?

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (