How could you use iron fillings to tell which of the two bar magnets is stronger

How would doubling the made of an object change the objects potential energy

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Which lists the organs in the correct order as food passes from the mouth to anus?