Afly of mass 0.5 g is sunning itself on a phonograph turntable at a location 6 cm from the center of the record. the turntable is turned on and rotates at 45 min. calculate the centripetal force needed to keep the fly from slipping off. what force provides this?

How can you increase the strength of an electromagnet?

Where should a carbon monoxide detector be mounted?

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.