1. [-/2 Points] DETAILS OSCOLPHYS2016 9.2.P.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) When opening a door, you push on it perpendicularly with a force of 47.0 N at a distance of 0.750 m from the hinges. What torque (in N.m) are you exerting relative to the hinges? (Enter the magnitude.) N.m (b) Does it matter if you push at the same height as the hinges? O Yes O No Additional Materials Reading 2. [-/1 Points] DETAILS OSCOLPHYS2016 9.2.P.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 165 N at a distance of 0.600 m from the hinges, and the second pushes at a distance of 0.450 m. What force (in N) must the second exert to keep the door from moving? Assume friction is negligible. N X Additional Materials Reading3. [-/1 Points] DETAILS OSCOLPHYS2016 9.2.P.004. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The two children shown in the figure below are balanced on a seesaw of negligible mass. The first child has a mass of 25.3 kg and sits 1.54 m from the pivot. The second child has a mass of 41.7 kg and sits 0.934 m from the pivot. Use the second condition for equilibrium (net 7 = 0) to calculate F, the supporting force (in N) exerted by the pivot. (Enter the magnitude.) m2 12 W2 N Additional Materials Reading