Circle the atom in each pair that has the largest atomic radius. A: Al or B

B: S or O

C: Br or Cl

D: Na or Al

E: O or F

F: Mg or Ca

You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30∘ above the horizontal with a force of magnitude 240 n, causing the box to move horizontally. the force of friction between the moving box and the floor has magnitude 41.5 n . what is the box's acceleration just after it begins to move