A spring has a force constant of 100 N/m and an unstretched length of .07m. One end is attached to a post that is free to rotate in the center of a smooth table, as shown. the other end is attached to a 1 kg disc moving in uniform circular motion on the table, which stretches the spring by .03 m. Friction is negligible. What is the work done on the disc by the spring during one full circle.

reserve is the answer

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it