What is the maximum mass that can hang without sinking from a 60-cm diameter styrofoam sphere in water? assume the volume of the mass is negligible compared to that of the sphere.

Blank liquids and gases exert a buoyant force on objects placed in them

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.

In a good thermo flask the main cause of heat loss is