Which vector is the sum of vectors a and ?
b
а
O
A.
B.
C.

When using the scientist method, which step comes last?

Does current flow through or across a resistor?

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