a. A spring with k = 11 N/m is stretched 0.25 m. What force does the spring apply? (1 point) b. What is the spring constant of a rubber band that exerts a force of 35 N when it is stretched 0.1 m? (1 point) c. An elastic band has a spring constant of 55 N/m. It will break when the force reaches 2000 N. How far do you need to stretch the band for it to break? (1 point) d. A 2 kg mass hangs motionless from a spring with spring constant 8 N/m. How far will the spring stretch if the mass is motionless? (1 point)

wavelength divides in half and speed stays the same.

i think the answer would be reserve.

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.

i think the answer is a, hope this : )