7. To swing a pail of water around in a vertical circle fast enough so that the water doesn't spill out when the pail is upside
down. If Axel's arm is 0.60 m long, what is the minimum
speed with which he can swing the pail so that the water
doesn't spill out at the top of the path?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

It is really hard for me right know

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?