In hooke's law, f spring = k (triangle) x , what does the k stand for?

a. the amount of force acting on the spring

b. the elastic constant, a number that tells the relative strength of the spring

c. the distance the spring stretches

d. the constant of gravity

Hook's law is: F = - K Δx

Where:

F stands for the force that the spring exerts

K is stands for the constant of the spring

Δx stands for the distance the spring is displaced from the equilibrium point.

And the negative sign is due to F is opposite to the direction in which the spring is away from the equilibrium point.

the answer is B. the elastic constant, a number that tells the relative strength of the spring.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.