What would happen if a dog ate chocolate pls give a ful explanation

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.