I need help finding k and make a graph. In this lab we put a 511g cart and used a spring to launch it up an incline with weights increasing by 100g. The formula I was told to use is k/2Δx^2=mgh but i can’t figure out how to find the x or k. All the data we recorded is in the pictures “ Determine the energy stored in a dynamic cart Determine the spring constant of the dynamic cart's spring”

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o