What would happen if a group of force of 45 n compete against a group of 50 n

What are the three ways that an object can accelerate

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

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.