Help asap How does the scientist know that the substance goes through a change of state during the time period labeled B on the graph?
a. the temperature remains the same
b. the temperature increases gradually
c. the particles start slowing down
d. the particles start moving faster

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.