we are apt to shut our eyes against a painful truth - and listen to the song of the siren till she transforms us into beasts

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force