Pls help me 6th grade science second two pics are the possible answers

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

Compare the patterns of the two waves shown in the image. which statement is true about these waves?