How many regions does the deltoid muscle have

Which lists the organs in the correct order as food passes from the mouth to anus?

What is a costume plot? why is it important to a film or theater production?

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?