The statue of mass 2t is lifted by crane to the pedestal, to a height of 2m. Determine the useful and invested work if the efficiency of the crane is 45%​

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.

Which best describes the difference between internal and thermal energy?

Why is no-till farming more sustainable than many traditional methods of farming