What is the mass of a 7 kg bowling ball on the moon?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

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

Why would an orange roll of your cafeteria tray if you stopped suddenly