Will give brainliest for the best answer! Why are so many station models used to gather weather data in the United States?

What energy transformations occur each time the skateboarder rolls up the ramp?

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?

Aforce is a vector quantity because it has both?