During the 1750s, why did great britain spend money and resources to defend their american colonies?
select the best answer from the choices provided.1-they were important to their empire's economy.
2-many british subjects lived there.
3-they distract france's attention.
4-all answers are correct.

What is the scientific definition of energy that relates to work

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal