A woman pushes a lawn mower with 25 N of force. If the handle makes a 40° with the horizontal and the mower weighs 50 N, how much is she pushing down with?
What is the total downward force on the ground by the mower

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter