In the 1950's, an experimental train that had a mass of 28800 kg was powered across a level
track by a jet engine that produced a thrust
of 4.24 x 105 N for a distance of 502 m.
Tind the work done on the train

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?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat