A mass of 3.5 kg is attached to a vertical spring of spring constant 140 N/m. How long does the spring stretch? (g=10m/s2)

What are the factors that affect the resistance of a wire?

Why are graphs useful when interpreting data

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.