What happens when the data in an investigation do not support the original hypothesis?
a. the hypothesis is revised.
b. the scientist gives up and starts an investigation on a new topic.
c. the data are altered so that they support the original hypothesis.
d. the data must be incorrect and are thrown out.

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.