Acircular room has a radius of 6 meters. a 60 kg person is pinned up against the wall of the room as it rotates. the room begins to decelerate, at the moment the person begins to slip the room is rotating at 50 rpm. what is the normal force exerted on the person by the wall?

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Work = force × a. work b. energy c. distance d. momentum

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.