What is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is 2.8 mT

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Mga halaman/punong ornamental na di namumulaklak

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.