Aforce of 1 n is applied to a 1-kg mass. what acceleration does the force produce

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

What is the magnitude of the resultant vector round your answer to the nearest tenth

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.