A 0.5 kg object is moving in a circular path while being swung with a radius of 0.75 m. Attached to the object, is a 2 kg object hanging on a string below. At what speed must the .5 kg object travel in order to keep the 2 kg object in place?

Could someone . i have tried to solve myself but my calculation is off

What is a carrier wave and how does it affect what you hear on the radio

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.