The maximum kinetic energy of the electron emited from a metallic surface is 1.6x10 to the power -19 J when the frequency of radiation is 7.5 × 10 to the power-14 Hg. calculate of minimum frequency of radiation for which radiation is emited

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?

What determines the amount of inertia an object has

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?