A circuit is arranged as shown. The lower end of the spring just touches the Hg level. When the key is pressed, the spiral spring (S) (assuming it to be made up of a conductor)https://d1qxoew3d1nshk. cloudfront. net/institute/brilliantpalalms/ques tions/ea564ea3d9e8476b9e189993562e6 18e. gif

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Which type of basaltic lava flow has a fairly smooth